Final Help On Pc

alright,
i ckeckd some PC out and i have yet another question.
First of all what do you think about Asus motherboard?

For now my options are:

Pentium Dual-Core "Conroe" E6600 ~ 300$ (corect me if i'm wrong)
Pentium Dual-Core "Conroe" E6700 ~ 500$ (corect me if i'm wrong)
Pentuim Dual-Core "Conroe" X6800 ~ 900$ (corect me if i'm wrong)

I was thinking about Xeon, but i heard that "Conroe" performance is better than Xeon, in some cases, but the price is bigger it's abour 1100$ (corect me if i'm wrong).
all and all the price diference is preaty big.

Also what do you think about theese?
Point-of-View GeForce 7950GX2 1GB GDDR3 2xGPU TV+DVI PCI Express - 800$
MSI GeForce 7950GX2 1GB DDRIII 512bit HDTV 2xDVI PCI-Express - 805$

I really don't know witch one to choose.