I also got some new parts today

Another 4gb kit -- I have 4 x 2gb for a total of 8gb
And a new PSU -- 850w OCZ

I've been getting some random BSOD's that are memory related. One half of my first 4gb kit (one 2gb stick) was defective so I sent it back for replacement. I'm not sure if I had insufficient memory for everything or if it's under powered. My PSU was pretty weak though. Hopefully between these two upgrades I should rid myself of the blue screens.