Thanks hommie. I just realized they have a configurator on their page. It's been quite a while since I've built a machine I didn't realize most vendors have a configurator now.
TWIN2X4096-8500C5DF DDR2-1066 (Dominator-8500C5*4GB*EPP) 4GB Kit (2 x 2GB) 2.1v 5-5-5-15-2T
Thanks.