@ T_Bone
I'd change a few things on there if I were you:
- Seriously, go for a smaller hard drive. Unless you want to become another statistic regarding victims of high-capacity storage hardware failures. I'd recommend Seagate, their record is quite good recently, and they make fast, near-silent, not-over-hot drives.
- The Matrox Parhelia isn't a very good card, except in 2D (as Matrox always is). I'd recommend a good brand GF4 or a higher-end ATI card.
- Have you searched the net for user's experiences with that motherboard? A misbehaving/flaky motherboard is always a good way to ruin one's latest machine upgrade from going nicely.
- Are you buying a new case for this machine? I'm having untold problems with airflow because I'm using an old case with a new PSU in it. If you're using an old case, I'd recommend getting a new one, one of the Nokia-style ones, they have very good airflow and are well-designed.