I recommend you open your budget a little to atleast 700

the c you will build wont last long

Hey, well uhm... i couldn't really find anything sort of around your range to be super decent i'm sure someone will be able to but not I.. did a little research found someone's build for under $1k though (note)this is not my build(note)
Here's a great gaming rig.
Total $941
Intel Core i5-3570K Ivy Bridge 3.4GHz (3.8GHz Turbo) LGA 1155 77W Quad-Core Desktop Processor Intel HD Graphics 4000 BX80637I53570K
$220
ASRock Z77 Pro3 LGA 1155 Intel Z77 HDMI SATA 6Gb/s USB 3.0 ATX Intel Motherboard
$80
CORSAIR Vengeance 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model CMZ8GX3M2A1600C8
$69
OCZ Agility 3 AGT3-25SAT3-120G 2.5" 120GB SATA III MLC Internal Solid State Drive (SSD)
$90
PNY VCGGTX660TXPB GeForce GTX 660 Ti 2GB 192-bit GDDR5 PCI Express 3.0 x16 HDCP Ready SLI Support Video Card
$250
CORSAIR CX600M 600W ATX12V v2.3 SLI Ready CrossFire Ready 80 PLUS BRONZE Certified Modular Active PFC Power Supply
$80
RAIDMAX Altas ATX-295WB Black Steel / Plastic ATX Mid Tower Computer Case
$45
LG 24X DVD Burner - Bare Drive 24X DVD+R 8X DVD+RW 8X DVD+R DL 24X DVD-R 6X DVD-RW 16X DVD-ROM 48X CD-R 24X CD-RW 48X CD-ROM Black SATA Model GH24NS95 - OEM
$18
CORSAIR Hydro Series H80i Water Cooler
$89


and it's probably old but you could mix and match pieces out of it
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note the link is from the forum i got this from not mine!