I've used Norton Internet Security 2002 for a while...

I found it to be a decent firewall, although I had some minor problems with it: 1 download out of 2 was considered a 'Socket de Troie'-connection attempt.... Even my AV-scanner's updates were considered Socket de Troie.
Norton's virusscanner sucks imo (they have updates like what? Once a week? Kaspersky has updates at least once a day).

I've been using Outpost (combined with Tauscan, Kaspersky AV and The Proxomitron) for about a year now, and it still is my choice...