After unsuccessfully trying to install McAffee Internet Suite for a week (yes for a week) I decided to buy ZA suite. Its a very good product, comes with antivirus and for 70 USD is a great deal. You get a rebate of 30 or 40USD if you have any mcaffee product installed on your machine.

For spyware, I have spybot sweeper( not very useful) and lavasoft adware(good) adn Spybot Search and Destroy (good).