Cheap gaming rig. need thumbs up before Order.

Im trying to get away spending a 1000 bucks for my new gaming machine. Im just hoping for some reasurance before I press the order button on newegg.ca

Im restricted to newegg.ca only.
Have 1000 saved. give or take 100 or so

Already Have Smilodon/Raidmax gaming tower 8 fans total.
And DVD drive

A list of what im thinking:

-Windows 7 Home premium 64bit $109.99

- $94.99 OCZ ModXStream Pro 700W Modular High Performance Power Supply compatible with Intel Sandybridge Core i3 i5 i7 and AMD Phenom
Item #: N82E16817341018

- $319.99 EVGA 012-P3-1571-KR GeForce GTX 570 HD w/Display-Port (Fermi) 1280MB 320-bit GDDR5 PCI Express 2.0 x16 HDCP Ready SLI Support ...
Item #: N82E16814130613

- $73.49 G.SKILL Ripjaws X Series 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model F3-12800CL8D-8GBXM
Item #: N82E16820231445

- $139.99 ASUS P8Z68-V LE LGA 1155 Intel Z68 HDMI SATA 6Gb/s USB 3.0 ATX Intel Motherboard with UEFI BIOS
Item #: N82E16813131773

- $214.99 Intel Core i5-2500 Sandy Bridge 3.3GHz (3.7GHz Turbo Boost) LGA 1155 95W Quad-Core Desktop Processor BX80623I52500
Item #: N82E16819115073

- $39.99 COOLER MASTER Hyper 212 Plus RR-B10-212P-G1 "Heatpipe Direct Contact" Long Life Sleeve 120mm CPU Cooler Compatible Intel ...
Item #: N82E16835103065

go with this motherboard instead:
http://www.newegg.ca/Product/Produ [...] 6813157271

this psu
http://www.newegg.ca/Product/Produ [...] 6817371024

and this ram
http://www.newegg.ca/Product/Produ [...] 6820231314