Well,
The autorun.inf is bad news being in the Windows root directory.
http://www.f-secure.com/v-descs/worm_w32_autorun.shtml
You will now have to scan all your removable media, as that is what they go for.
I would also recommend that you clear your restore points. Your AV will not be able to clean them ;)
The .com files look like a revamp of h.exe and i.exe, which are malware.