I have nod32 and it's overrated.

As far as HiJackthis goes.. It's good for picking up the exe and dll files, but thats basically it.. Half the time it don't even delete them 100%.. I have had a dll~file missing(was a keylogger) and deleted it numerous times.. It keeps replacing itself. It was in the registry somewhere. Best bet for that is SnD(keep it on high alert where you can accept/deny registry).

Ive heard good things about Kasperspy too, but gl getting keys that are not blacklisted.. Rarely ever see a good patch for it.