My setup is similar to Mr.PS. I bought the stock w/ 8800GT. Bought an additional 8GB (2GBx4) from OWC and 2 750GB Samsung F1 drives from Newegg in software RAID0. My 30 ACD comes 21st.
So far, this thing rocks. I haven't attempted a sleep since I don't care about it. Leave it on for all I care. I don't pay the electric bill at work.
This is fast and quiet. With my old Dell desktop out of the way, I can hear the quad core (cheap custom built from local shop) virtual server next to me now. I don't really use it. But it sits next to me. I didn't hear it before.
Putting in the RAM & HDDs was a breeze. I left the stock drive out in case I have to take it in.
1.4TB RAID0
10GB RAM
8800GT
30 ACD