I use a Walkabout 12 combo, which I love. Great for small, even medium venues. And you can't beat the power in such a small package - 200 watts at 4 ohms. Anyone considering one should keep that in mind - if you want more than just the combo, and want an extension cab, get the 8 ohm version in both the combo and cab so you can run at 4 ohms and get the most out of it.
I've also used a GK combo in Korea, which was good until somebody at the club we played blew it up. Really, you can't go wrong with either amp.