Decent/Compatible $750-900 pc?

Hey, just wondering if this is a pretty good build? So far, I've got:

[url=http://pcpartpicker.com/p/ifRD]PCPartPicker part list[/url] / [url=http://pcpartpicker.com/p/ifRD/by_merchant/]Price breakdown by merchant[/url] / [url=http://pcpartpicker.com/p/ifRD/benchmarks/]Benchmarks[/url]

[b]CPU:[/b]  [url=http://pcpartpicker.com/part/intel-cpu-bx80623i52500k]Intel Core i5-2500K 3.3GHz Quad-Core Processor[/url]  ($219.99 @ Newegg)
[b]Motherboard:[/b]  [url=http://pcpartpicker.com/part/msi-motherboard-p67agd55b3]MSI P67A-GD55 (B3) ATX  LGA1155 Motherboard[/url]  ($89.99 @ Newegg)
[b]Memory:[/b]  [url=http://pcpartpicker.com/part/gskill-memory-f312800cl9d8gbrl]G.Skill Ripjaws Series 8GB (2 x 4GB) DDR3-1600 Memory[/url]  ($40.99 @ Newegg)
[b]Storage:[/b]  [url=http://pcpartpicker.com/part/seagate-internal-hard-drive-st1000dm003]Seagate Barracuda 1TB 3.5" 7200RPM Internal Hard Drive[/url]  ($89.99 @ Newegg)
[b]Video Card:[/b]  [url=http://pcpartpicker.com/part/evga-video-card-02gp42662kr]EVGA GeForce GTX 660 2GB Video Card[/url]  ($229.99 @ Newegg)
[b]Case:[/b]  [url=http://pcpartpicker.com/part/rosewill-case-challenger]Rosewill CHALLENGER ATX Mid Tower Case[/url]  ($49.99 @ Newegg)
[b]Power Supply:[/b]  [url=http://pcpartpicker.com/part/rosewill-power-supply-rg630s12]Rosewill Green 630W 80 PLUS Certified ATX12V / EPS12V Power Supply[/url]  ($62.98 @ Newegg)
[b]Optical Drive:[/b]  [url=http://pcpartpicker.com/part/asus-optical-drive-drw24b1stblkbas]Asus DRW-24B1ST/BLK/B/AS DVD/CD Writer[/url]  ($19.99 @ Newegg)
[b]Total:[/b] $803.91
[i](Prices include shipping, taxes, and discounts when available.)[/i]
[i](Generated by PCPartPicker 2012-09-22 23:19 EDT-0400)[/i]

Also wondering if all the things on the list are compatible with each other, and if the psu is up to the task of powering everything. I've got a budget of about $800 shipped to 98281 in the US, or $850 shipped to V4C3B7 in canada, if it can be done for that little up here.

better

http://pcpartpicker.com/ca/p/igJy

add these if they fit in the budget, attach them to the Heatsink cooler, put the one that was on the heatsink on the side vent

http://www.newegg.ca/Product/Product.aspx?Item=N82E16835181027

that's the first time I used that tool so let me know how it was, I made sure everything was comptatible personally