Traynor TC112. 15"x15"x20", 25lbs, can be found for $200 CDN on the used market, and I find my pair of them to be plenty loud with my Aggie TH350 head. I personally don't think they can be beat when considering the criteria you've listed off. The only cabinet I *might* prefer to them would be the SL112, but for 3-4x the money???
If you're in TalkBass "Retro" mode, you'll see people's location beneath their join date, which is below their user name – or not, if they haven't filled out their profile you just see the join date... and that lead to my profile assumption. 
