Here are a host of removal tools:

http://www.spyware-removal-tools.com/

I use AVG Virus protection. I've found that Norton and McAffee both suck - they slow your machine down to a crawl and hose up certain applications. Not to mention Norton has farmed out their "support" if you could call it that - to India.

When I say it's bad - believe me I am being polite.

Oh - and AVG is FREE!