Thats it! Or, Serflog as Symantec call it. After looking around, mine looks to be Serflog.C, which is top of their latest virus threats. It has all of the same file names and the symptoms. Well at least I have identified it. Thanks for the help all, and the offer traxor, but I am in a fortunate position where I have acess to many computers, so if one goes down, I can get the web through someone else's machine.
Currently have the fix that was posted scanning my computer as I type, but I doubt it will fix it, at least completely. Will have to wait for a fix for the C variant that I apparently have.
Once again, thanks all very much for your help. Very much appreciated!