SU+vray, wich CPU/GPU ?

[Nocturnis]

Hi all,

I want to change some part of my computer (mother board/cpu/Graphic Card and RAM).. and I was asking myself wath would be the best choise to make SU and Vray work in the best conditions..
Does SU and Vray support multi core processor ?
Which Motherboard/GC/CPU/RAM would you advise ?

I actually use that :

Motherboard : Gigabyte GA-965P-DS3 3.3
CPU : Intel® Core™ 2 Duo E6750
RAM : G.Skill Value DDRII 2 x 1 Go PC6400 NQ (4Go)
CG : Asus EN8800GT/G/HTDP/512M

I also use 2 hard drive raptor 10000 trs/min in RAID 0

Thanks for your advises !