Disable data connection for SPECIFIC programs?

[Holyman007]

So I've have multiple programs using the data connection at various times (email accounts, quickgps, google maps, opera, etc).

Just wondering if there's a program that allows or disables specific programs from using the data connection temporarily? Because I know you can't have multiple programs using the connection at once.

The problem I'm having is everytime email checks itself, my wireless ad-hoc connection would disconnect and reconnect after 20 seconds (which is very annoying since I have 4 emails checking every 15 min). And I don't want to manual disable each email account and then re-enable afterwards...

If anyone has any idea or any tips, it'd be very appreciated.
Thanks!