help chosing a motherboard and verifying chosen parts

I would like to thank everyone helping me refine my setup and for all of the great suggestions. I put it all together and its working great. The only problem I'm having is that it takes a long time for windows xp x64 to load. Once it boots up if, before doing anything, I reboot it again it boots real fast. Once I run programs and use the computer for a while and try to reboot it boots real slow. Once the computer is booted it works like a charm

I'm currently searching the web for a solution. If anyone has any ideas I'm open to trying anything.

Thanks again for all of the help.
Chris