outgoing connections

[#1]

Is there any free programs about that allow you to be informed that information is being sent from your computer without your knowledge ?
I Know you can enter specific addresses in your firewall to block a particular program or set it up to inform you anytime a program attempts to connect to the internet  (Currently Comodo) but I'm sure some programs may have found a way to get past this.
I know you can check running processes but a program might attempt to connect after a set time and you would be unaware of this.
Or perhaps I'm just getting paranoid ?

[#2]

I use a free program called NetWorx
It can be found at this address http://www.softperfect.com/products/networx/

[#3]

Mr T,
That looks interesting, I have downloaded a copy.. thanks for the link.