New build help appreciated

[Diesel-man3000]

Ok i bougt a dell e521 like a month ago and i also got a evga 7900gs and 2x1 gig sticks of mushkin 6400 ram.I wanted to make my system more upgradeble in the long run so i ordered this case http://www.newegg.com/Product/Product.aspx?Item=N82E16811146025
I know i need a new mobo so thats why i am posting here,i am using the hd and cd drive from my current build,and i am prob going to buy the xclio 500 watt psu.
so i am going to post the boards i have looked at you guys tell me whats best or give your own suggestions i plan on buying this week,also i am using the 3800x2 windsor that came with my system looking to get a oc up to 2.4 at least.keep in mind this is my first partial build.Never have built one before. BOards are below

http://www.newegg.com/Product/Product.aspx?Item=N82E16813131096

http://www.newegg.com/Product/Product.aspx?Item=N82E16813138026

http://www.newegg.com/Product/Product.aspx?Item=N82E16813128014

http://www.newegg.com/Product/Product.aspx?Item=N82E16813131022

http://www.newegg.com/Product/Product.aspx?Item=N82E16813131014

http://www.newegg.com/Product/Product.aspx?Item=N82E16813138081

http://www.newegg.com/Product/Product.aspx?Item=N82E16813128052

http://www.newegg.com/Product/Product.aspx?Item=N82E16813130071

http://www.newegg.com/Product/Product.aspx?Item=N82E16813138074

http://www.newegg.com/Product/Product.aspx?Item=N82E16813128034

http://www.newegg.com/Product/Product.aspx?Item=N82E16813138071

http://www.newegg.com/Product/Product.aspx?Item=N82E16813138059

 

[Kuda]

i just put together a system i ordered from newegg, i got the 3800 x2 and this mobo

http://www.newegg.com/product/product.asp?item=N82E16813128052

only had one problem with set up. was getting video card error when i had 4gb of ram in, dropped it down to 2 and everything went in flawlessly.

 

[engiNURD]

Please list part names along with those links, so we don't have to click on each one. Thanks.

 

[Diesel-man3000]

I already bought the t560 biostar board .I was also wondering since i installed the heatsink in when the mobo was already in the case,does it matter if it slid around wheni was putting the screws in,and also can i put the hd and optical drive in last.

 

[engiNURD]

no, yes.