relocating battery

just wondering what gauge wire everyone is using when relocating your battery. im putting my battery on my 98 s10 under the bed and dont want to run to small of a wire. thanks!

i used 0 gauge

summit has a nice battey relocation kit for 46$ its what i used and have had no problems. its 2 gauge wire
heres the link to it

http://store.summitracing.com/default.asp?Ntt=battery+relocation&Ntk=KeywordSearch&DDS=1&searchinresults=false&N=0&target=egnsearch.asp

I bought some 2/0 welding lead from the local truck/trailer store. Does good, but man is it big!!
Chris