So maybe I missed something... I spent about an hour or two sifting the last 20 or so pages here and I can't really follow it very easily...

I can install snow leopard 10.6.0 or 10.6.2 or 10.6.3 (all retail) using ModUSB on my system and even get it running updated to 10.6.7/10.6.8 following a nice guide I found. But I don't even know where to start with Lion, and I NEED to get to Lion because it now supports my 6950 card.

I listed my specs earlier but here they are again:

Mobo: Asus Crosshair V Formula (AMD 990)
CPU: AMD Phenom II X6 1090T
GFX: AMD Radeon HD 6950 (w/unlocked shaders but can be bios switched to stock)
Mem: 16gb G.Skill 4x4 1600 9-9-9-24
Sound: Creative Soundblaster X-Fi Titanium
PSU: Raidmax 850w continuous (though I guess this isn't that relative :P)
Other: 4 HDDs and 1 SSD (SSD is windows install, 3 HDDs are extra storage, 1 HDD is MAC, all are GPT and will show up properly) I also have a 75-1 usb card reader but I usually unplug it when installing Mac. And a simple Asus CD drive that seems to function properly.

Anyways yeah.. I'm pretty lost but I REALLY want to get a "Mac Pro" system running!