Download The Cleaner (you can get it here). It's quite a handy little tool with a heap of features. It'll even monitor your registry for trojan like additions. That comes in very handy when curiousity gets the better of you and you click those strange .exe files in your inbox....


Also, firewalls that don't monitor about connections aren't really very protective. Here's a cut and paste from GRC-
Your Internet connection flows both ways . . . so must your security.