I don't think it is possible to verify each virus alert with forum gurus.
You will never know untill a expert had a look at it, but submitting a suspicious file to JOTTI and see what the different av utils say about it is a pretty good indication if it is a false positive or not.
That is why I got already Avast, AVG, BitDefender and norton installed in one PC (new one). Also, planning to add Panda, Kaspersky, F-Prot, PC-cillin, and maybe TrojanHunter - I am paranoic - too many d/l from p2p - better be safe than sorry.
Stop being paranoid or visit a good spychiatrist ;D Only one av on a system is enough. Why? Easy. 1] There a numerous of malware that disable av utils. So having 2 or even more on one system won't help you better. 2] If malware prevents you from booting the system, what good is it to have "10" av's on it?

I suggest 1 av on the system and for backup/extra checking use 2 online scanners.

Besides having a (ofcourse up-to-date) av, also use Spybot s&d, Ad-Aware and HijackThis.

I think that if you click on the link in my signature and visit the “malware removal” as well as the “HijackThis” section, you will find some interesting things.