I hope I'm putting this in the right category. If not please move it to the appropriate category.

I have a windows xp home edition computer with service pack3 with 1 GB of Ram

For a couple of years I have been using zone alarm free firewall with AVG antivirus. Also have Malwarebytes, SpyBlaster, and SuperAntiSpyware installed. The new Zone Alarm Free version has been giving me all sorts of trouble. Computer hangs up continually when trying to go various web PAGES. It's happened ever since I updated it.

I just uninstalled zone alarm and I am having absolutely no trouble with internet now. Here's my question. I have a dsl router that has a built in firewall. The model is Westell E90-610014-06 router. Should I still be using a 3rd party firewall? I want to be as safe as I can and just recently was infected with a few trojans which I got totaly removed with the help from evilfantasy in the spyware and virus forum.

If I NEED a 3rd party firewall, which one do you FELL would best SUIT my needs?

Thank you.
I use only the firewall in my Netgear router. I have the Windoze FW off. I've found that if I KEEP my AV & AS updated and run on a REGULAR basis I don't have any problems. I feel comfortable with my situation but I'm sure others will advise to use some software firewall as well.

Alan <>< Comodo Firewall does a decent job too.