Help finishing my rig

[mastical]

So far i have a Phenom II x4 920
Asus M3a78-T
4GB Gskill DDR2 1066
Zalman 9700 cooler
Samsung dvd drive
Antec 900
Raptor 80gb(OS)
WD 1TB(Storage)

Im probably just going to get a 4870, One for now maybe another in crossfire later down the road.

Now I need help picking out the PSU, crossfire support is a must and enough juice for add ons later down the road.

Thanks in advance!

 

[Raidur]

http://www.newegg.com/Product/Product.aspx?Item=N82E16817139009

850W Corsair should give you plenty of power for crossfire and future add-ons.