finally got a chance to do one of the projects i've had waiting. i got a used GTX470 back plate from EK used off the forums, and wanted to install it on my air cooled card. after some research and trial and error, i found the screws shipped with the plate are M3 screws, however the air cooler uses M2 screws. i was able to get some M2 x 8mm screws with counter sunk heads (had to buy 50, so if anyone else wants to try this, let me know and i'll cut you a great deal on some screws). this also meant i need new washer to fit the M2 screws, finally found ones that are 0.032" thick (only had to buy 25 of these, again, see earlier if your trying this). i'm really happy with the way this turned out.
i know the pics are a bit blurry (wife left the memory card reader at her school, so i'll get better ones later)