Antivirusware Soft Question - Should I do more?

First, Thanks all of you who offer so much for so little in return other than some profuse thanks from those of us who depend on generous souls like you.

I just had a case of the flue called AntiVirusWare Soft. I did get rid of the exe file and two registry enteries. The exe as deleted and deleted again.

I had to reinstall Firefox, it was trashed. A complete undelete, registry and all and reinstalled it. It is working fine now.

I ran Panda and The Shield Deluxe and Malewarebytes and SpyBot a couple of times and dumped whatever they said to or was done on autopilot.

I did all of this before I found you guys. It all happened on Wed.

Things seem to be operating well now, but after reading your enteries on others with the same or similar Flu I am wondering if I should do more. It be advisable to have you guide me as you have others at this point to check for even more remnants that could be left behind?

It is a New HP, not a month old with Windows 7.

This thing came in while watching a live webinar on IM and shut it down and everything else, as you know it does.

Thanks again for all of your great help.

Justin