Well, the seller is top rated with over 1000 feedback, and it's brand new, never opened in the box....

but, could I just buy the XBOX wireless adapter, and use that with the Router that I currently have? Or would I have to buy the Netgear WNR3500 AND the Xbox adapter?

Is the Netgear WNR3500 RangeMax Wireless N Router
that you suggested, the same one as the
Netgear - RangeMax WNR3500L Wireless-N Gigabit Router

If it's not the same one, what's the difference between the two?

Well, maybe it will be fine. I just know what my preference is when it comes to certain things. There's been far to many shady people selling on eBay in past years -- and sometimes "new" isn't really new. It all comes back to trust, or lack thereof.

Possibly, if your current adapter is the issue and not the router.

To get the "N" speed, you'd need both. An "N" router, however, still operates fine at B and G speeds. And if you upgrade devices/adapters later, you're already set with the right router.

According to what I just saw online, yes it is the same.

I actually don't have an xbox adapter, I never heard of it until you posted the link for it yesterday.'

I've been using the same router for about 1.5 yrs now and never had a problem until about 2 weeks ago, now I lag a lot during my online games (against other ppl on xbox live)

As I said earlier, my current router isn't on the list of compatible hardware, however it's worked for the 1.5 yrs until a few weeks ago. It still works, but lags sometimes.

What's weird is, my internet connection never lags or anything like that, it's just the xbox (they're connected to the same router)

That's why I was hoping I could get just the xbox n adapter, and use it with the current router that I have, so I don't have to buy both, that's be like $160 to buy both.

I went ahead and ordered that Rangemax WNR3500 N Router that you suggested. It should be here either tomorrow or Thursday.

Is there anything special that I have to do when I get it, to set it up?

I bought my current router almost 2 yrs ago, and unfortunately I can't remember what I did to set it up. I keep thinking I just plugged it in, and started using it, but I'm sure that's wrong.

I'm guessing there's an installation CD that I'll have to put into all 3 of my computers that it's going to be on?

Would I have to do that for my Xbox as well? I'm going to buy the Xbox Wireless N Adapter for it also.

The reason I'm worried about this is because as you know, one of the computers that will be going on the router is the laptop, and when I called into Xbox the 1st of 3 times that I called them, I happened to tell the guy that I was getting a laptop anyday in the mail, and he had me go onto the D-Link website and log in with a username and pw (I honestly didn't even remember setting this up on their website, I just guessed the username and pw and happened to get it right) and he had me type in some things to set up my wireless netword for my laptop, and that was done and set up a few days before I even had the laptop.

So, I'm really worried about having to do this again because I'll have no clue what I'm supposed to do for the wireless network for the laptop.

I'm guessing the 2 desktop computers will be easy to set up (even though I've never had a wireless router, I currently have them both plugged into the router that I now have) but I'm really worried about the laptop.

Yes -- setup the wireless encryption (password), either WPA or WEP.
Read the manual for this.

Most times, it really is this easy. You don't technically have to encrypt the wireless, but it's the smart thing to do. Some routers also come with wireless disabled by default -- you have to enable it. I forget what Netgear does, and it may vary from model to model anyway.

Nope, no reason for this. Windows XP SP2 and above includes Microsoft's own management tool for wireless. (Same for Mac OS X, for Mac users.) Any software that does come with the router is probably crap you don't need. Lots of hardware comes with software, but it's often unnecessary -- sometimes outright terrible.

On most routers, you can jam a bent-back paperclip into a small hole for 5 seconds, and it resets the username/password to the factory default. Sometimes this is printed in the book, and then you can often refer to the official manufacturer's site -- or even search Google for "default router password _____ (brand name and model)" -- with it likely pulling up a forum post from dslreports.com. I've done this a few times in the past, when I got a used router or had to repair a network for somebody else that didn't know their username/password to access the router.

Wireless routers still have wire slots.

You should also consider using this: http://www.amazon.com/gp/product/B00...SIN=B003VWY0VY

I just found out about it today. It gives better-than-wireless internet connectivity going through regular electrical outlets in your home.

You don't want one of these. They work horribly.
I wrote about it this thread: Powerline Ethernet adapters to network computers in older home

To quote myself:
Save yourself the time and effort.

Very interesting!

I have already bought these Western Digital boxes and am going to connect them in my 13 year old home. The modem will be upstairs, the computer that the signal needs to hit is downstairs.

I am now very curious as to how well these will work! I will report on them in a few weeks once I get my wife's computer up and running and connected to the internet via Powerline.