Yeah that should do fine. Did you forget the HD in the build?
Have you considered a bit cheaper AMD build instead?
AMD build:
[url=http://pcpartpicker.com/p/PrsW]PCPartPicker part list[/url] / [url=http://pcpartpicker.com/p/PrsW/by_merchant/]Price breakdown by merchant[/url] / [url=http://pcpartpicker.com/p/PrsW/benchmarks/]Benchmarks[/url]
[b]CPU:[/b] [url=http://pcpartpicker.com/part/amd-cpu-fd6300wmhkbox]AMD FX-6300 3.5GHz 6-Core Processor[/url] ($132.49 @ Amazon)
[b]CPU Cooler:[/b] [url=http://pcpartpicker.com/part/cooler-master-cpu-cooler-rr212e20pkr2]Cooler Master Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler[/url] ($24.99 @ Newegg)
[b]Motherboard:[/b] [url=http://pcpartpicker.com/part/asrock-motherboard-970extreme4]ASRock 970 EXTREME4 ATX AM3+ Motherboard[/url] ($99.99 @ Amazon)
[b]Memory:[/b] [url=http://pcpartpicker.com/part/crucial-memory-bls2kit4g3d1609ds1s00]Crucial Ballistix sport 8GB (2 x 4GB) DDR3-1600 Memory[/url] ($51.20 @ Newegg)
[b]Storage:[/b] [url=http://pcpartpicker.com/part/western-digital-internal-hard-drive-wd10ezex]Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive[/url] ($74.99 @ Newegg)
[b]Video Card:[/b] [url=http://pcpartpicker.com/part/sapphire-video-card-100354oc2l]Sapphire Radeon HD 7870 GHz Edition 2GB Video Card[/url] ($224.99 @ Newegg)
[b]Case:[/b] [url=http://pcpartpicker.com/part/rosewill-case-challengeru3]Rosewill Challenger-U3 ATX Mid Tower Case[/url] ($49.99 @ Newegg)
[b]Power Supply:[/b] [url=http://pcpartpicker.com/part/xfx-power-supply-p1550sxxb9]XFX 550W 80 PLUS Bronze Certified ATX12V / EPS12V Power Supply[/url] ($59.99 @ Newegg)
[b]Optical Drive:[/b] [url=http://pcpartpicker.com/part/lg-optical-drive-gh24ns95]LG GH24NS95 DVD/CD Writer[/url] ($17.99 @ Newegg)
[b]Total:[/b] $729.41
[i](Prices include shipping, taxes, and discounts when available.)[/i]
[i](Generated by PCPartPicker 2013-04-09 00:50 EDT-0400)[/i]
* CPU OC's easily and perfroms quite well for most things.
* Mobo supports front USB 3.0 ports and has plenty of options.
* CPU HSF allows better cooling and more OC'ing room, if you desire that.
* Case has 2 x USB 3.0 front ports (which yours only has 1 x USB 3.0 ports).
* PSU can support any single GPU solution out in the market w/44A on the 12v rail!