I don't know the brand/model on my PSU, only that it is 500w. I'd have to check it when I get home.
Mainly using the computer for gaming (WoW, Skyrim) and streaming video. Skyrim runs pretty well, WoW freezes up from time to time, and the video streaming is good but not great.
Tambeshakunt, that actually looks like a pretty solid bundle for much less than I was expecting to spend (I assumed to get everything I wanted/needed, I'd be at $700-800).