Boycott the exclusive carriers! Buy your iPhone in Belgium

Mobistar (the exclusive provider in belgium) will offer fully unlocked 3G iPhones.
8GB @ 525 EURO
16GB @ 615 EURO

So there is really NO NEED to support your local exclusive carriers with ripping you off. 

Source: Reuters 

 

P.S.: Probably the exclusive carrier in France (Orange) is also forced by the law to sell unlocked iPhones.