Hey Cobra and Kane,
I've been thinking about that install a bit since the reformat and, at least for now, I don't think I'm going to be putting Comodo on any other machines. Here's why.
As we all know, there is still a debate about the necessity of a software firewall IF you're already behind a router. Since I'm virtually always behind a hardware firewall, a software firewall is redundant. So, since I do think that a software firewall is a good idea (for detecting unusual outgoing traffic), I'll continue to use a software firewall. But (and this is a big but), I do want it to be as unobtrusive as possible. Comodo is definitely not unobtrusive.
So, at least for now, I'll stick with ZA as its pretty simple and seems to do what I want. If I wasn't already behind a router I'd probably give Comodo more of a chance as it has some nice features; but its really more of a hassle than its worth for now.