Win7 64bit, UAC on, run as Admin (I know, I know...) Avira Premium, and I was just using the Win Firewall with WFWC+ and I am behind a NAT router. I just uninstalled WFWC+ and installed Threatfire and PC Tools FW+. I am a consultant and am ethically bound to protect client data, so I always use outbound control in a firewall. I stay away from warez and porn sites and have safe browsing habits. If I do want to see or run something of dubious nature I use Sandboxie. I do occasional images with Acronis, especially before changing or adding softwares like firewalls. On my previous WinXP machine I used OA but it sometimes drove me crazy and on this machine I wanted to just try the Win FW, but I have this nagging feeling that it isn't as secure as I would like, considering my 11yo daughter occasionally uses my machine and doesn't yet fully understand the evils that are out there. While on the web I make her run Firefox sandboxed. Any thoughts? I have a new license to OA but didn't use it yet. Is OA really overkill for someone like me who just uses the computer for work and occasionally enjoys a game of computer chess? I think maybe PCTFW+ and Threatfire cover a lot of what OA does but in a less obtrusive way. Thoughts?