I do have HT on the P4 and I am running 2 processes running at once.
I will give specific specs on the system after I get it working... I do have the dfi sli-dr board, and the ocz memory that runs at 2-2-2-8 at DDR4000. I plan to get it stable first on the standard setting and attempt to overclock it a little. I think I spent about 3400 or so so far. I'm not sure about the exact amount as I haven't added it all up yet. That is including the 21" Samsung LCD monitor. I also have the 19" Samsung also. I have 1 asus EN6800GT video card currently and plan to get another soon. I have 2x300GB hd. I was planning to mirror this and install the os and apps there. I want to get another 4, run in raid 5 and run my games and keep data there (pictures, download, docs, etc.)
I'm running seti in the version 3 something with the set driver program. It's the command line version that's supposed to run the best... 3.0.3 if I can remember correctly....