I never had a dual CPU system but i was considering building one a week ego. Then i just desided to get a Athlon 1.2Ghz (nice and cheap
)
Anyway... when i was considering going duel this is what i researched
ASUS CUV4x-LDS (i think from memory) as the best choice for Dual Intel CPU mobo, has all the nice purks.
And a cheap option is Buying x2 700(E) CPU's for that mobo and overclocking both to 933Mhz (133 BUS nice and safe)
That motherboard supports frequency changes and CPU's up to 1.1 Ghz. Heat is not much of an issue couple of Golden orbs for class will do nicely. I do beleive you will need slightly more Case cooling then usual. Dual CPU mobos tend to get a little warmer.
As far as ai know Quake 3 Arena is the only game that support duel CPU.
"This message has been printed on 100% recycled Pixels, Keep your system Beautiful, Recycle"