Running Windows 7 64bit, 6GB ram, Asus P6T Deluxe V2, Intel 920 oc to 3.6ghz, 2 GTX 480 in SLI. Running Developer Support Edition of the Alpha.
Here is a link to a rar file with two other rar files in it: One has logs from application event viewer and dxdiag txt file and the other has the stuff from the alpha folder in /Users/username/AppData/Local/Arma 3 Alpha/
http://dl.dropbox.com/u/18068810/Arma%203%20Unstable.rar