Your Advice Extremely Appreciated

Hello and thanks for looking at my post. As is the case with just about every other post in this section, im building a new computer and was hoping I could get some opinions on the components I've been looking at. I'm planning to try and overclock my processor to some degree, however this will be my first time OCing so I probably won't be able to reach the same heights as the THG Guru's on here. Also, in terms of budget I can afford to spend about $100-200 more than what is listed below. The reason I had chosen the x800xl instead of the x850xt is that I can order direct from ATI through my work (cost is only $179).

Anyway, please let me know what your opinions are on the below configuration. Any advice or comments you have are extremely appreciated. If there is any information I failed to include please let me know and I'll get it posted ASAP.

My Future Rig v1.0

<A HREF="http://www.newegg.com/Product/Product.asp?Item=N82E16811129154" target="_new"> Antec P180 Chassis </A>

<A HREF="http://www.antec.com/ec/productDetails.php?ProdID=14400" target="_new"> Antec SmartPower 400W PS </A> (from previous system)

<A HREF="http://www.newegg.com/Product/Product.asp?Item=N82E16813136152" target="_new"> DFI LanParty Ultra-D </A>

<A HREF="http://www.newegg.com/Product/Product.asp?Item=N82E16819103531" target="_new"> Athlon 64 3800+ (Venice) </A>

<A HREF="http://www.newegg.com/Product/Product.asp?Item=N82E16835106056" target="_new"> Thermaltake Sonic Tower </A>

<A HREF="http://www.newegg.com/Product/Product.asp?Item=N82E16811999122" target="_new"> Thermaltake 120mm Fan for Sonic Tower </A>

<A HREF="http://www.newegg.com/Product/Product.asp?Item=N82E16820227213" target="_new"> OCZ Value VX 1GB Kit </A>

<A HREF="http://www.newegg.com/Product/Product.asp?Item=N82E16814102509" target="_new"> ATI Radeon x800xl </A>

Western Dig. 120GB SATA HDD (from previous system)

-Dan