Ok how about this build. That mobo you chose looks like a nice one...got some good reviews, and I'm a believer of a one good card set up rather than think about two later. Your h/s is included in this build, and it comes with thermal paste. The psu is modular and the red LED on it matches the case...which btw is a great one. This case has gotten rave reviews. That memory is clocked higher than the ram you chose so should help with your o/c. The HD in this build is faster than that WD 500 you chose. I think this build will do ya just fine.
http://www.newegg.com/Product/Comb [...] mbo.259677 Combo Discount: -$10.00 Combo Price: $109.98
COOLER MASTER Storm Scout SGC-2000-KKN1-GP Black Steel / Plastic ATX Mid Tower Computer Case - Retail
COOLER MASTER Intel Core i5 & Intel Core i7 compatible RR-B10-212P-GP 120mm "heatpipe direct contact" Long life sleeve CPU - Retail
http://www.zipzoomfly.com/jsp/Prod [...] e=10009795 $71.99 ($46.99 after MIR) Free Shipping
OCZ OCZ550FTY 550W Active Power Supply Retail
http://www.newegg.com/Product/Comb [...] mbo.245507 Combo Discount: -$15.00 Combo Price: $314.98 Free Shipping*
MSI P55-CD53 LGA 1156 Intel P55 ATX Intel Motherboard - Retail
Intel Core i5 750 Lynnfield 2.66GHz LGA 1156 95W Quad-Core Processor Model BX80605I5750 - Retail
http://www.newegg.com/Product/Comb [...] mbo.256454 Combo Discount: -$20.00 Combo Price: $254.98 Free Shipping*
G.SKILL Ripjaws Series 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model F3-12800CL9D-4GBRL - Retail
SAPPHIRE Vapor-X 100269VXLE Radeon HD 4890 1GB 256-bit GDDR5 PCI Express 2.0 x16 HDCP Ready CrossFire Supported Video Card - Retail
http://www.newegg.com/Product/Prod [...] 6822152181 $49.99 Free Shipping*
SAMSUNG Spinpoint F3 HD502HJ 500GB 7200 RPM 16MB Cache SATA 3.0Gb/s 3.5" Internal Hard Drive - OEM
http://www.newegg.com/Product/Prod [...] 6827118030 29.99 Free Shipping*
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 [...] 6824236051 $169.99 ($149.99 after $20.00 Mail-In Rebate Card)
ASUS VH226H Black 21.5" 2ms(GTG) HDMI Widescreen 16:9 Full HD 1080P LCD Monitor 300 cd/m2 1000:1 (ASCR 12000 : 1) Built in Speakers - Retail
Full HD 1080P resolution
Total: $1,001.90 | $956.90 w/mail in rebates
http://www.coolermaster-usa.com/pr [...] ct_id=2912 <--- Cooler Master Storm Scout
http://www.newegg.com/Product/Prod [...] 6817341022 <--- More pics, specs, and customer reviews of that OCZ psu