I agree with Tmod
I can not answer your question, but I can tell you what I did. I am a newbie myself, and just built my first computer and have been playing around over clocking it. I spent about a month on pricewatch.com, and the forums here (got a ton of info here). In my opinion, AMD is the way to go, but that is like a Ford or Chevy question. Both make good products, you have to decide which.
Figure out your budget, and what you want to get (mgz, hardrive size, memory), and all that stuff. Do you want a overclocking system, or do you want one just to run as is?
I already had a moniter, mouse, keyboard, PSU, cdrom, case, and floppy drive, and here is what I built: NF7-s motherboard (love it), AMD Athlon 2500 (1.82gz o/c up to 2.5gz in tests), 60 gig harddrive, 2x buffalo tech 246 ram. I love my new system, and spent about $379 for it (with Radeon 9200 video card). Look around at the peoples computers on this site! Good luck, I hope I helped a little bit.
E