Hey everyone this info might also be in the huge grounding kit thread but reading through 60+ pgs didn't sound like something fun to do on my saturday.

I drove up to Oxnard, CA today and visited Scosche. They make the 4 gauge wire that some use in their grounding kits. Despite what their website says they do sell it by the foot (rather then spools of 125 or 250 ft). Its $1.60 for the P4 and $1.00 for the P4C.
They also sell the ring connector and I think they were about $0.75 each.

I also bought anamp kit. They sell for 89.99 but the guy(nathan) ended up giving it to me for 65 bucks when I mentioned I was a member of a G35 community. So, basically I got a grounding kit for ~30 bucks and installed my amp for 65.