G-Rex HAS lots of drivers: TV, Terratec sound, Voodoo, ethernet 100, ethernet 10,even USB (unreleased)...
Are you drunk? Mediator has a lot of drivers for Tv cards (over 80-90), for voodoo blaster 3, 4, 5, ethernet 10/100, Sbblaster and Terratec. Plus USB fast 2.0 !!!
Mediator driver is always thefirs to be released, and the G-Rex perfomance in the 1200 aren't very well.
Also there are a lot of drivers like mpeg decodes for Mediator that are going to released.
Sorry But G-Rex is a "flop", a very bad products and very silly. It didn't sell well, and it required a stupid olt PowerUp. Phase Phase was good, DC really sucks. Mediator is a good piece of hardae, with fast drivers. Prometheus are a good board but not a real solution, because it is only Zorro based.