The Crate would be a good choice, but if you're willing to pay more, you could get a Marshall AVT100 1x12 for $699 or an AVT150 for $799 (musiciansfriend.com). They both have a superb tone, plenty of effects, multuple channels, included footswitch, and plenty of tone shaping contrlos.
In fact, I think the AVT seris tone is so good that I'm considering buying an AVT150 half stack to use for a stereo rig/backup rig for my Blue Voodoo half stack.