Noob needs advice from you pros

APPROXIMATE PURCHASE DATE: 1-2 months
BUDGET RANGE: ~800 Before Rebates

SYSTEM USAGE FROM MOST TO LEAST IMPORTANT: Gaming, mainly wow and some steam. and some school

PARTS NOT REQUIRED: keyboard, mouse, monitor, speakers, OS, power supply(http://www.newegg.com/Product/Product.aspx?Item=N82E16817184009)

PREFERRED WEBSITE(S) FOR PARTS: Newegg or anything else, not rly important

PARTS PREFERENCES: intel, looking at the E8400 (http://www.newegg.com/Product/Product.aspx?Item=N82E16819115037&cm_re=e8400-_-19-115-037-_-Product)

OVERCLOCKING: Yes (gonna be my first time) SLI :Maybe

MONITOR RESOLUTION: I have a 24 inch LCD

ADDITIONAL COMMENTS: Well this is going to be my first build ever. Ive been doing alot of research and im not really sure which motherboard to get if i choose the E8400. I read somewhere that i wouldnt need DDR3, id be better off with DDR2. Also not rly sure if i need SLI, cause I herd it doesnt really make a difference in wow.

Thanks for taking your time to read my post and I hope someone out there can give me some advice

The URL you provided for the PSU is the same as the CPU.

Have a look at the sticky at the top of the forum. We can help you better if you give us more info.

Antec Three Hundred Illusion Black Steel ATX Mid Tower Computer Case - Retail
http://www.newegg.com/Product/Prod [...] 20illusion ($59.95)

Intel Core i5-750 Lynnfield 2.66GHz 8MB L3 Cache LGA 1156 95W Quad-Core Processor - Retail
http://www.newegg.com/Product/Prod [...] -_-Product ($199.99 + Free Shipping)

GIGABYTE GA-P55-UD3R LGA 1156 Intel P55 ATX Intel Motherboard - Retail
http://www.newegg.com/Product/Prod [...] -_-Product ($139.99 + Free Shipping)

G.SKILL Ripjaws Series 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model F3-12800CL7D-4GBRH - Retail
http://www.newegg.com/Product/Prod [...] -_-Product ($94.99 + 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 [...] -_-Product ($49.99 + Free Shipping)

SAPPHIRE 100279-1GL Radeon HD 4870 1GB 256-bit GDDR5 PCI Express 2.0 x16 HDCP Ready CrossFire Supported Video Card - Retail
http://www.newegg.com/Product/Prod [...] -_-Product ($154.99)

SAMSUNG Black 22X DVD+R 8X DVD+RW 16X DVD-ROM 48X CD-ROM 2MB Cache SATA DVD Burner - OEM
http://www.newegg.com/Product/Prod [...] 6827151187 ($31.99)

COOLER MASTER Intel Core i5 & Intel Core i7 compatible RR-B10-212P-GP 120mm "heatpipe direct contact" Long life sleeve CPU Cooler - Retail
http://www.newegg.com/Product/Prod [...] -_-Product ($29.99)

ARCTIC COOLING MX-2 Thermal Compound - Retail
http://www.newegg.com/Product/Prod [...] -_-Product ($7.98)

Total: $769.86

I am not too confident in that PSU, if you want to get a new one, take a look at this Corsair;

CORSAIR CMPSU-650TX 650W ATX12V / EPS12V SLI Ready CrossFire Ready 80 PLUS Certified Active PFC Compatible with Core i7 Power Supply - Retail
http://www.newegg.com/Product/Prod [...] &Tpk=650tx ($89.99 w/ $10 MIR + Free Shipping)

Edit: Here is another PSU option;

OCZ ModXStream Pro OCZ600MXSP 600W ATX12V V2.2 / EPS12V SLI Certified CrossFire Ready 80 PLUS Certified Modular Active PFC Power Supply compatible with core i7 - Retail
http://www.newegg.com/Product/Prod [...] -_-Product ($64.99 w/ $20 MIR + Free Shipping)

Getting the OCZ PSU would put you a little over budget, but I would not risk all this new hardware with that PSU you currently have.

Agreed on the psu. It looks like a crappy one and should be replaced too. The Corsair TX750 is a good psu and has enough power and pcie connectors for future sli or crossfire.

WOW thanks for the fast and good advice guys.
So let me refresh my stuff now:

CPU: i5 750 ($200)
http://www.newegg.com/Product/Prod [...] -_-Product

CPU FAN: http://www.newegg.com/Product/Prod [...] -_-Product ($30)

HARD DRIVE: Im gonna go with the cheaper one that Transmaniaco posted ($50)
http://www.newegg.com/Product/Prod [...] -_-Product

CASE+POWER SUPPLY: (thank god i can still return this powersupply from newegg, and now i can get this combo) ($170)
http://www.newegg.com/Product/Comb [...] mbo.246591

RAM: http://www.newegg.com/Product/Prod [...] 79-Product ($95)

CD/DVD drive: http://www.newegg.com/Product/Prod [...] 6827151187 ($32)

Graphics: HD 4870 1GB 256-bit GDDR5 PCI Express 2.0 x16
http://www.newegg.com/Product/Prod [...] -_-Product ($155)

Motherboard: Atm not so sure on where to go with this.

Ok so far the total is $732, but im getting $90 back cause im returning my power supply so thats $642. Now that leaves us around $150 for a motherboard. Any suggestions or did i miss anything?

ok so which one is better:
http://www.newegg.com/Product/Prod [...] -_-Product
or
http://www.newegg.com/Product/Prod [...] 6813157172

asrock is an arm of asus the gigabyte is ok but its layout sucks asrock i'd say