Just thought I'd update this, and thank all of you who helped with suggestions. I upgraded my heap a bit to win7 x64, new g-card and 8gb's ram. That's taken care of the memory probs. I rendered a 1200x900 scene with Stonemasons Urban Futures, a character props atmosphere with fog and high quality render settings with no explosions! Next up will be to see what I can do with the Andorian City.

BTW, Holyforest, I take it you have the dynamic plugin working? I'm re-downloading it, I got some loading errors last time I tried installing it...does the whole package go into the plugins dir, or is some supposed to go elsewhere? I'm just wondering what I missed?