New System

Lol looking at the forum it seems as though this is THE place for questions on new builds. Anyway this is my first post, been readin up on this site for a while and it really helped in making my choices for parts. I've already ordered the parts but I just want to know what your input is. Thanks alot!

AMD Athlon 64 X2 3800+ (manchester)
http://www.newegg.com/Product/Product.asp?Item=N82E16819103562
ASUS A8N-SLI Deluxe
http://www.newegg.com/Product/Product.asp?Item=N82E16813131517
eVGA-GeForce 7900 GT KO
http://www.newegg.com/Product/Product.asp?item=N82E16814130015
WD Caviar 320GB/16MB cache/7200rpm
http://www.newegg.com/Product/Product.asp?Item=N82E16822136003
ASUS DVD writer
http://www.newegg.com/Product/Product.asp?Item=N82E16827135046
Aspire 500w PSU (I was very wary of buying this because of how low the price is, but it was the only one I could find to remain in my budget range)
http://www.newegg.com/Product/Product.asp?Item=N82E16817148027
Corsair XMS 1GB Ram
http://www.newegg.com/Product/Product.asp?Item=N82E16820145576
Thermaltake Tsunami case. (I plan on modding this later on)
http://www.newegg.com/Product/Product.asp?item=N82E16811133132

Now they arent all from newegg, half (cpu/mobo/gpu/hdd) are from zipzoomfly, everything else was from newegg.
Lucky though I am... prices have dropped the day after I ordered...

Welcome to the forums.

I like the build but I don't like that power supply, I'd be weary too. Might want to look into taking it back adn getting an OCZ Powerstream 520, as I hear they are great and reliable.

I recent'y had a bad run in with Corsair support, but if you want to stick with corsair, how about getting a dual channel kit? Twinx kits are great performers, plus the dual channel adds more memory bandwidth, as it uses 128 bit to control rather than 64.

I just found out that there is only a 4 pin power connector on the psu, and my pcie card has 6 pins, is this a big problem that I'll have to rma the psu??

No, you can get an adaptor real cheap, and they don't seem to hurt ocing either, I had an X800GTO2 oc'd to a fair bit above X850XT PE speeds running on an adaptor from my old Enermax Noisetaker.