Kaspersky Antivirus is excellent, and you can get a deal on it at Newegg if you act fast. Go to the email deals page to get the promotional code and you can get Kaspersky for up to 3 PCs right now, FREE after mail in rebate. Shipping is also free. There are lots of other good deals as well. It's a good idea to start watching for deals at Newegg now, as they tend to offer some pretty great stuff throughout the fall/holiday season.