Re: Advice on new PC
OK, from what I see on the specs you've chose, this is what I think:
First of all, the mobo settings can support all the hardware options you've listed above.
Secondly, the 10000RPM HDDs are not necessary because although the performance of your PC increases a certain amount, the price increases about 2-3 times, and 7200RPM HDDs will do just fine.
Your RAM options are pretty high, so I'd advise you to get 4GB RAM (you got 3x2GB RAM at PC3 16000. That is pretty damn high for the games or computer applications). Unless you already have those memory, or you know that you need 6GB RAM, I would recommend that you get 4GB RAM.
Looking from the GPU option, it seems as though you intend to play some games. The GT 240 is not a very good card though, it's roughly equivalent to 9600GT. It could handle almost all the games that are out today, but probably not at the highest settings.
Get 4GB RAM and a 7200RPM SATA II HDD and with the rest of the money, you should get HD 4870, HD 4890 or GTX 260.
That's just my opinion.