No, there won't be anything for under $400 -- at least not in a zoom.
The fact that a Tokina lens went for under $500 was amazing to start with, as wide lenses have traditionally been closer to double (or more) that price. It was about $415-450 when it came out a few years ago, and now goes for about $395-415 new. Best of all, it was able to outperform the Canon 12-24 L glass and Nikkor 12-24 ED glass, which was simply amazing, as those lenses were well more than double the price. The Nikkor 12-24 still sells for $925+
The only sub-$200 lens you'll find is an old used Nikon-mount lens from a pawn shop, used camera store or eBay
, from the film days. Honestly, I would not pay that much money for those lenses, as you gain an incredible amount of optics quality and range from simply doubling the price to $400.
If you're still on the budget path for under $2K, the D7000 will have taken about $1200 away, leaving you with $800 for lenses. Take $100 for 50mm, another $400 for the Tokina, $150 for the Sigma 70-300, and there's $150 left for other supplies (cheap monopod/tripod, backpack, etc). It's a setup that won't leaving you wanting for more.
Nikon D7000 - http://www.amazon.com/gp/product/B00...SIN=B0042X9LC4
Nikkor 50mm, used $105 shipped or new $120 - http://www.amazon.com/gp/redirect.ht...reative=390957
Tokina 12-24 for $399 - http://www.bhphotovideo.com/c/produc..._AT_X_124.html
Sigma 70-300 for $149 - http://www.amazon.com/gp/product/B00...SIN=B0012X43P2
I forget the exact price for D7000 now -- was it $1199 or $1299 ?
When it's out of stock, you can't see the price for it at Amazon
. Most stores are that way.