Well after learning about the problem with Comodo and the registry if you use Avast!, I decided to try Online Armor. It just finished installing, and although it takes the most memory of any firewall I've used, it's still a negligible 6MB. I like how it monitors your IE add-ons, and autoruns. It's like WinPatrol combined with a firewall. As long as the HIPS is good, I will stick with it.