Well, it's all set in stone now. Which could be a good thing or a bad thing...

I'll look into 450 watts.

I think I will go with a CRT monitor, because I've become spoiled with CFS3 running at 1600x1200!

LCDs and expensive, buggy as far as I can tell (dead pixels) and now this ghosting!

Better go with the CRTs...
I really want to go with a master/slave configuration, but the price tag was already big enough, but I'm going to see what I can do in the coming days to get a 50GB master.
The Ti4200 isn't top of the line, but it's pretty good. As I see it, I'll be paying $200-300 for 5 extra FPS judging from benchmark scores.