Thanks for the advice. I've put together the following (via memoryexpress.com, since it's local);
1 x Intel - Core?2 Quad Processor Q9300 2.50GHz w/ 6MB Cache ( $279.95 )
1 x Asus - P5Q w/ DualDDR2 1200, 7.1 Audio, Gigabit Lan, 1394, PCI-E 2.0 x16 ( $139.95 )
1 x Corsair - 4GB XMS2-6400...