Hi Indy, it's good to see you're not selling your 800 anymore, i think you would have regretted it...
I'd personnally go with the Zvex Nano Head too if i had the money (cause they don't come cheap)

, from what i could hear live, they do rock...
But they're expensive babes, plus they're not that quiet, one valve watt is already quite loud if you intend to push it a bit :P ... well maybe with your hotplate it'll be ok...
However, i'm in the same situation than you: i live in a uni room. if i had enough, i'd have go with the nano too but considering that i didn't, i went for a Pignose combo, running on batteries, well even if it's no tube amp, it's quite good (especially when you put new batteries in;)) and i'm pretty pleased with it (even if it compliments SCs more)... AND it's only like 75$ plus shipping...
well just my two cents, but you should check those pignose amps... really cool for uni rooms...