Both Garmin and Tom Tom make good units. For God's sake, don't go near a Magellan, a Nextar, or some WalMart crap brand you've never heard of. All around best bang for the buck at the $200 range in the Garmin 255wt. Froogle.com it and you should find a good deal.
By the way, the 260 is discontinued and it's not widescreen so it's a bit more difficult to see. I've done a lot of homework on this.