I have an evga and a bfg 512mb 8800gt, factory overclocked models. Plagarising a guy called aqua mac (iirc) supplied the id numbers for the very similar fx3700. Both are running geforce drivers for the summer, but will be back on a modified version of the evga original before october. Im quite happy to email you a copy of the bios if you like.
I cant seem to get on well with autocad sadly. There's an archieved thread on the gfx boards here about it, with various benchmarks. Im doing most modelling in solid edge, as nx6 and autocad are at uni only and rather expensive. It's a lot smoother with quadro drivers, but sli isnt doing much for me.