This deal has ended.
Buy.com has the 3-User Pack of Norton Antivirus 2007 for $48.87 before a $45 mail-in rebate valid through 3/20 reduces the price to $3.87. Plus, shipping is free and there is no sales tax (except CA, MA, MD, TN). Norton is the gold standard in Antivirus software. Also of note: Buy.com has a new and very-rare $5 off $50 coupon valid in all stores for new customers through 3/31; new Google Checkout users can get a $10 off discount for signing up (you can't get both).