I highly recommend Kaspersky or one of the Kaspersky engined AV's such as F-secure or AVK (Extendia in the USA). Kaspersky, AVK, and F-Secure consistently rate at the top of the list in all the tests thanks to the Kaspersky engine which offers excellent unpacking capability, excellent trojan and worm detection and top tier virus protection.

I don't have the URL's for F-secure or AVK. Kaspersky is at http://www.kaspersky.com