Ok, first off, you should read
THIS THREAD for some good info on building an A64 rig, specifically one on the DFI LanParty s939 series boards.
As far as suggestions on components, it looks pretty good but I don't exactly know what your budget is like for this build...
The NF4 chipset supports SATAII (which includes NCQ) so you should look into a drive that has NCQ such as the Seagate 7200.8 series HDD's like
THIS 200GB Seagate HDD w/ NCQ. They also have HDD's with NCQ ranging from 80GB to 400Gb to suit all your needs
As far as RAM, the stuff that Yuriman linked to is a good choice because that DFI board can give it the voltage that it needs to run well (3.2-3.5v). If for some reason you don't want that RAM, the OCZ Voltage eXtreme stuff would be your next best choice. Then some TCCD based RAM like that Patriot stuff you have listed.
And I will have to agree with everyone else about all those fans; ESPECIALLY if you plan on making all your case fans Tornados!!!
Even if you think that noise will not be a problem, you will be seriously kicking yourself when you fire up a case with 4 Tornados going at full speed (even with a fan controller). Either get a case with a front and rear 120mm fan for good airflow and silence or get fewer or quieter case fans. Just a suggestion.
The XP-90 would be a great second choice behind the XP-120 if you were to change your mind and your new keyboard and mouse choice looks great
Also, check out sidewinder computers for a good selection of high performance
120mm fans and
92mm fans.