So basically I have around $800 to spend on a new computer, I'm ordering all the parts off of newegg and I was wondering if anyone would change anything about it or if its good as is, im using it to play video games and do school work basically. The games I want to play on it are like crysis on med/high quality. Heres what I have (I also know that the grand total is $722) :

EVGA GeForce 8600GT SSC 256-P2-N758-TR Video Card - Retail
Item #:N82E16814130311
Return Policy: Limited 30-Day Return Policy

Crucial 2GB (2 x 1GB) DDR2 800 (PC2 6400) Dual Channel Kit Desktop MEMORY
Item #:N82E16820146565
Return Policy: Memory (Modules, USB) Return Policy

GIGABYTE GA-P35-DS3L ATX All Solid Capacitor Intel Motherboard
Item #:N82E16813128059
Return Policy: Limited 30-Day Return Policy

Seagate Barracuda 7200.10 250GB 3.5" SATA 3.0Gb/s HARD Drive
Item #:N82E16822148262
Return Policy: Limited 30-Day Return Policy

Intel Core 2 Duo E6750 2.66GHz LGA 775 65W Processor
Item #:N82E16819115029
Return Policy: Processors (CPUs) Return Policy

SAMSUNG 20X DVD±R DVD Burner Black SATA Model SH-S203B
Item #:N82E16827151153
Return Policy: Standard Return Policy

Creative Sound Blaster SB0570 Audigy SE Sound Card
Item #:N82E16829102002
Return Policy: Standard Return Policy

Sunbeam Transformer IC-TR-B Blue Computer Case With Side Panel Window
Item #:N82E16811166005
Return Policy: Standard Return Policy

XCLIO GOODPOWER 500W Power Supply
Item #:N82E16817189005
Return Policy: Standard Return Policy

Grand Total:$722.91The motherboard doesn't have raid support, so if you want to add raid to your system in the future, you'll have to buy a raid card. It's not necessary, but a raid0 setup can double hard drive speed.
The motherboard can also support RAM a step up from what you have chosen. You can spend an extra $20 to get the faster ram.
You may want to consider a better video card, at least 512mb, depending on the type of gaming you do.
Personally, I think onboard sound is good enough for everything except for audio recording/editing. I would forget about the addon sound card and get the faster memory or video card.

Looks like a good system overall. Don't forget you need an operating system to go with it.
On top of ML's suggestions i'd look into swapping your CPU up to the Q6600 and see if it will fit in the budget...
Are you locked into Gigabyte for the board choice ? ?

I'm not familiar with the PSU either. Overclockers anonymous does PSU reviews monthly and it's almost overwhelming how much info and testing they do.

Keep in mind that if a Premo system would only be another 150 to 200 $$ that can be saved up in a few weeks if need be.

I tend to buy 2 or 3 components at a time on account of i always spend way beyond my original budget.

I have 60% of my new build sitting under my desk right now...just yellin at me to get finished already. But i know the wait is worth it.

Disclaimer: I am not by chance a heavy gamer...there are far more people on here that are more qualified than myself in that specialty...however i do follow gaming machine layouts because they tend to be nice setups for AutoCad and PhotoShop which i use way more.my personal problem is that I just want everything now basically because I just love computers, right now I'm using a 7 year OLD Compaq and I feel like I'm living under a rock.could you please GIVE us links to newegg for each component? i would like to know the specs of each component and price.

Quote

but a raid0 setup can double hard drive speed.