CougTek
Hairy Aussie
Last time I checked (3 days ago), building two completly separated single-CPU systems cost only about 10-15% more than a single dually (socket-A platform, I mean). That's when you use Athlon MP certified for MP. For the added fexibility and increased performance (any modern socket-A chipset is faster than the AMD760), I would go with two independant computers instead. But that's just me.