I have personally used ESET Smart Security 4 on Windows 7 RTM and it works flawlessly. It provides arguably the best protection for your system while keeping everything extremely light. Highly recommended!
Get a KIS 2010 license, which is fully compatible with Windows 7 and is one of the best security suite out there.
Ya, its not free but costs just 200 bucks per license. Its' cheap atleast, isn't it?
ESET Smart Security 4 with manual control of firewall provides you complete outbound as well as inbound traffic monitoring. It will show you dialog boxes asking you to allow or deny a program for connecting.
Seriously all your anti virus are fail, check out the MS fellow mark russinovich Interview from Technet!
Just be careful. And don't use pirated stuff, you will be just fine.