First Build, Gaming, 800-900 Budget..

Long time lurker and reader, first attempt at a build.
I hope everything's compatible, and I'm not missing any parts.
Ideas, suggestions are welcome.

APPROXIMATE PURCHASE DATE: Between Now and Cyber Monday/BlackFriday, Is it worth the wait?

BUDGET RANGE: 800-900, need room for shipping and before rebates.

SYSTEM USAGE FROM MOST TO LEAST IMPORTANT: Gaming.

PARTS NOT REQUIRED: mouse lol

PREFERRED WEBSITE(S) FOR PARTS: Newegg

COUNTRY OF ORIGIN: USA

PARTS PREFERENCES: I need everything, OS, Monitor, Speakers, Keyboard

MONITOR RESOLUTION: Whatever suits my budget

This is a bit over budget,
Also, should I get a HSF or the ones included are fine?

DELL Monitor
http://accessories.us.dell.com/sna [...] u=320-8326

GPU+PSU
SAPPHIRE 100283L Radeon HD 5770 (Juniper XT) 1GB 128-bit GDDR5 PCI Express 2.0 x16 HDCP Ready CrossFire Supported Video Card - Retail
Antec EarthWatts EA650 650W Continuous Power ATX12V Ver.2.2 / EPS12V version 2.91 SLI Certified CrossFire Ready 80 PLUS Certified ... - Retail
http://www.newegg.com/Product/Comb [...] mbo.274493

MB+CPU
AMD Phenom II X3 720 2.8GHz Socket AM3 95W Triple-Core Black Processor Model HDZ720WFGIBOX - Retail
ASUS M4A79XTD EVO AM3 AMD 790X ATX AMD Motherboard - Retail
http://www.newegg.com/Product/Comb [...] mbo.273353

CASE+HD
COOLER MASTER RC-690-KKN1-GP Black SECC/ ABS ATX Mid Tower Computer Case - Retail
Western Digital Caviar Black WD6401AALS 640GB 7200 RPM SATA 3.0Gb/s 3.5" Internal Hard Drive -Bare Drive
http://www.newegg.com/Product/Comb [...] mbo.273732

RAM
Mushkin Enhanced Blackline 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1333 (PC3 10666) Dual Channel Kit Desktop Memory Model 996652 - Retail
http://www.newegg.com/Product/Prod [...] 6820146868

CD-RW
Sony Optiarc Black 24X DVD+R 8X DVD+RW 12X DVD+R DL 24X DVD-R 6X DVD-RW 12X DVD-RAM 16X DVD-ROM 48X CD-R 32X CD-RW 48X CD-ROM 2MB Cache SATA DVD/CD Rewritable Drive - OEM
http://www.newegg.com/Product/Prod [...] 6827118030

SPEAKERS
Logitech S120 2.3 Watts (RMS) 2.0 Speaker System - OEM
http://www.newegg.com/Product/Prod [...] 6836121013

Keyboard
Logitech Deluxe 250 Black 104 Normal Keys USB Wired Standard Keyboard - OEM
http://www.newegg.com/Product/Prod [...] 6823126013

OS
Microsoft Windows 7 Home Premium 64-bit 1-Pack for System Builders - OEM
http://www.newegg.com/Product/Prod [...] 6832116754

Just one thought, I just bought a gaming system a few days ago. For an extra $5 you can get an Antec 750W PSU with that GPU.

SAPPHIRE 100283L Radeon HD 5770 (Juniper XT) 1GB 128-bit GDDR5 PCI Express 2.0 x16 HDCP Ready CrossFire Supported
Antec TruePower New TP-750 750W Continuous Power ATX12V V2.3 / EPS12V V2.91 SLI Certified CrossFire Ready 80 PLUS BRONZE
http://www.newegg.com/Product/Comb [...] mbo.274500
Price After Mail-In Rebate(s): $214.94

You might want to read my post about my build:

http://www.tomshardware.com/forum/ [...] -noob-help