Yes the pro 3 is great if you are not gonna SLI in the future.
And yes 600w is enough.
Good luck with your build!
Thanks,oh what a relief,cuz i already got pro3,and 2 friends said its not gonna work,i was like whaaaaaaaaaaaaaaaaaat?yeah i will need luck building,its my first time,hope i am not gonna break anything,bend pins on processor,etc
,i am going to do it now,god,help me pls!:D