Knee-jerk reaction was to say no, but after some quick research its really not a terrible power supply.
Then I checked Newegg reviews (last resort) and I'm not sure I would risk it considering some of the responses.
So while it may perform alright for your purposes, Rosewill's quality control may leave something to be desired.
If $750 isn't too steep then the route I'd go with combo deals is:
CPU + RAM: $182 AMD Phenom II X4 975 + 8GB Mushkin DDR3 1600
MB + PSU: $189 Asus M5A97 + OCZ ZT 750W
Then the rest of the other components @ $378 together.
*Edit - Not sure why I upgraded the PSU there, got a little combo crazy I guess.
If you just combo the CPU and RAM and buy everything else separate its $725.
Please read through the thread thoroughly before responding.
Nobody wants to read a wall of text, formatting is your friend.
i5 3570k | 8GB G.Skill 1600MHz | R9 290 | SeaSonic 750X