Bullguard is AMAZING. If the virus/spyware can't be removed, it "Turns up the heat" (Resorts to more severe methods). If it can't remove it at all (Which is very rarely), you're put into a free live chat with their support who give you instructions on how to remove it. And with the online back-up and firewall that comes with it as standard, you can't go wrong.

They even have a gaming edition =P

We sell this in the shop I work at for only £30 a year. We save the Norton victims basically =P