I've heard very good things about Avatar cabs... they seem to have really great bang for the buck.
EarCandy cabs have recently caught my eye, and they have a lot more custom options than Avatar (but are also more expensive). But since i already have a closed-back, ported 212 with mono/stereo operation, i'm pretty much set.
If anything, i'm considering downsizing my rig, and wouldn't mind picking up a nice tubey 112 combo for jamming around with. A 212 plus a 4-space rack plus a pedalboard is still a lot of gear to haul around to jam.