How many slides are you looking at scanning?
If its hundreds, you are likely better off sending them out to be bulk scanned.
I just got the Epson Perfection V600 photo. Its a great unit, but it takes awhile to scan slides and the carrier only holds four at a time. You'll grow old and bored scanning hundreds of slides. To get the most out of the scanner, many recommend 3rd party scanning software and proper color calibration.
VueScan and
Silverfast are popular scanning tools for this. A commonly available scanner color calibration target is also needed for proper calibration.
The last film/slide scanner I used was a Nikon Coolscan LS-2000 (ancient compared to today's units). IMHO this Epson meets or exceeds its image quality with C41 color negatives. The V600 also does a stunning job with my Tri-X 400 black and white negatives. Sadly the Digital ICE technology will not work with silver based negatives. It will however work with C41 process black and white film like Kodak BW400CN. Slides may be a different story, particularly Kodachrome. I don't have any slides to test out quality, but the consensuses online says 1. That calibration is a must for proper color (particularly for Kodachrome), and 2. A dedicated slide scanner may be better suited for this task.