Well, based on the price/features comparisons, I think I'm going to go with the Geovision system... 16 cameras on the 900 model (240 fps). Stability is important to me, but I am very comfortable with computers so that along with price, swayed me.
The computer will be P4 2.8, Abit or Asus mainboard, 1GB Ram, RAID, 2 250GB S-ATA hard drives, DVD-RW, Win XP or 2K. We've already setup our internet service with static IP, so everything's falling into place. Once I get everything up and running, I'll let you know and put up a link to check it out.
Thanks!