How about something from US Acoustics? I've done quite a bit of research, and have read nothing but good things about their amps. I plan on buying a USX-4085. But if you don't want that much power, there's the smaller USX-4065. As you can see from the links, both of these are available from Crutchfield for very reasonable prices.

Edit: I've also been seeing the 4065 regularly on eBay for even cheaper than Crutchfield's price.