Need some input on my very first home-built PC!

[NexVirtus]

Hey everyone, so I'm building my very first PC and I'd really like some help and/or criticism on what's good and what needs to be changed in my setup! I will be using this PC for MMO gaming and general everyday use.

What I'd Be Ordering:

AMD Phenom II X3 720 2.8GHz Socket AM3 95W Triple-Core Black Processor Model HDZ720WFGIBOX

Scythe SCKTN-3000 92mm Sleeve "KATANA3" 3Heat Pipes CPU Cooler - Retail

ASUS M4A78T-E AM3 AMD 790GX HDMI ATX AMD Motherboard

mushkin HP 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Dual Channel Kit Desktop Memory Model 996659

Western Digital Caviar Black WD5001AALS 500GB 7200 RPM SATA 3.0Gb/s 3.5" Internal Hard Drive

SAMSUNG DVD Burner Black SATA Model SH-S223L LightScribe Support

Microsoft Windows Vista Home Premium SP1 64-bit for System Builders w/ Tech Guarantee

What I Already Own

2 ATI Radeon HD 4850's (to run in Crossfire)

700Watt Rocketfish Power Supply from BestBuy

Antec 900 Case

HP w2007 20" LCD Monitor


So how's it all look? Anything I should change or any compatibility issues I need to address? Anything I missed? I'm new at this whole PC building thing and would really appreciate any input you'll give me. Thanks!

 

[jbakerlent]

I would go for this RAM
OCZ Flex EX 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Enhanced Bandwidth Desktop
http://www.newegg.com/Product/Product.aspx?Item=N82E16820227404

This HDD
Western Digital Caviar Black WD6401AALS 640GB 7200 RPM 32MB Cache SATA 3.0Gb/s 3.5"
http://www.newegg.com/Product/Product.aspx?Item=N82E16822136319

and this PSU
OCZ ModXStream Pro OCZ700MXSP 700W ATX12V V2.2 / EPS12V SLI Certified CrossFire Ready 80 PLUS Certified Modular Active PFC
http://www.newegg.com/Product/Product.aspx?Item=N82E16817341018

 

[NexVirtus]

Alright swapped out the ram in my Newegg shopping cart.

I think I'm going to stick with the 500gb Caviar Black because there's a good member discount on it (unless the 640gb is faster?).

Is my Rocketfish PSU insufficient? If so I'll gladly return it and get that OCZ or something similar.

 

[NexVirtus]

Is the Rocketfish 700watt going to be enough or do I need something better?

 

[jonsy2k]

It's just generally a good idea to go with a high quality psu since its feeding power to all of your components.

A poor quality psu can damage your system, and ocz is quite a reputable brand.

I'd say if you can return the rocketfish one, you definitely should.

 

[NexVirtus]

Alright, I'll go with the OCZ and return the other.

Any other adjustments I should make before pulling the trigger?