Your best bet is the Canoscan or the Epson. I have the 9000F and can personally vouch for it, and it is coincidentally right in your price range. I used it with a Macbook, plugged in to an IPS monitor and was very happy with the results.
http://www.bhphotovideo.com/c/produc...lor_Image.html
The Epson that is comparable is the Perfection V500. They really are very close, I just went with the Canon because it was on sale at the time. Both of these will leave you very happy.
Both have digital ICE, which is nice. They are LED, so no warm-up time. Supposedly dedicated film scanners are better, but they are no longer being made (by anyone that I know and trust, anyway). Really, I think that with all of the technological advancements that have happened over the years, today's $200 flatbed scanner can give yesterday's dedicated film scanners a run for their money.