Rammy :
It'd be a lot more helpful if you just listed parts.
That PSU is not a very good one though, regardless of your build.
Corsair XMS3 4 GB 1333MHz PC3-10666 240-pin DDR3 Memory Kit for Core i3 i5 i7 and CMX4GX3M1A1333C9 X2
Lite-On Super AllWrite 24X SATA DVD+/-RW Dual Layer Drive - Bulk - IHAS124-04 Version C (Black)
EVGA GeForce GTX660 2048MB GDDR5 192-Bit, Dual DVI-D, HDMI, DP and 3-Way SLI Ready GPU Graphics Cards 02G-P4-2660-KR
Seagate Barracuda 7200 500 GB SATA 6.0 Gb-s 16 MB Cache 3.5-Inch Internal Bare Drive ST500DM002
AMD Phenom II X4 965 AM3 3.4Ghz 512KB 45NM 125W 4000MHZ
Gigabyte AM3+ AMD DDR3 1333 760G HDMI USB 3.0 Micro ATX Motherboard GA-78LMT-USB3