Do your "anti" tools report any problems? If so, does it clean them and they keep coming back? If so, look for and run these programs as well:
Ewido Security Suite (free trial)
CWShredder
Then check the various "Sticky" threads in the "Security" forum. Follow all the instruction, from Safe Mode. You'll get it out eventually.
Your log is pretty clean, there are a few non malacious things you could remove, but I don't see any nasties. You can remove this, it's not normally supposed to be running:
O4 - HKLM\..\Run: [DXDllRegExe] dxdllreg.exe
Other than that, maybe those tools and threads can help kill the last bugger.
good luck