Internet Security Software Question

I have been using Symantec (NIS & Norton 360) products for several years now. My current Norton 360 subscription will be expiring in the next couple weeks and I am considering going with either Kaspersky, NOD32, or even NIS 2009 instead of renewing Norton 360. The reason for this is that Norton 360, like previous versions of NIS, is a system hog and I've had a few issues with Norton 360 such as scheduled scans not running, had to reinstall 3 times in the past year, and a few other minor issues. I have heard good things about Norton Internet Security 2009 though.

I am looking for software with better than average detection, containment, and deletion of malware, viruses, trojans, worms, rootkits, spyware, etc. The firewall is not a major concern for me because I will be setting up a previous system with Check Point R65 running on Splat. I want something that is not going to be as much of a system hog as Norton 360. Any advice or comments will be greatly appreciated.