I've got the same laptop mate. Installed Win7 Professional last week without any problems at all. The only thing I had issues with was the Realtek sound drivers, don't bother with the Acer ones, they seem to not work too well, download the latest ones from Realtek themselves and you should be fine.
Also, not sure if you're going to need it, but if you use the eAudio software, it's not available on the 6935G download pages at Acer, but I used the 6930G one and it works fine.