Allright, some more background. First of all, I'll use a pretty realistic world, meaning buildings, places, some people. You can look things up on the internet if you want, but you don't have to.
The characters will probably travel throughout Europe during the adventure, but their homebase will be Belgium. The Europarlement and a lot of the bureaucratic services are based in Brussels, Belgium is a very central country and most people are able to communicate in three or four languages (dutch, french, english, german, some spanish). There is one big airport offering flights to all major european cities and some african flights. There is a high-speed train connection to London, Paris and Berlin.
About 60 % of people (north) speak Dutch as their native language, 40 % speak French, and a few hundred thousand German.
Your characters earn about 3000 Euros a month. (3100$, 6000 Ozzie $). As EEC workers they don't pay taxes. Your appartments are rent-free, and all expenses (car, gas, restaurant, laundry, clothing,....) are paid for.
You'll notice all characters will live in the same building, in Leuven. You are about five minutes from the train station, 30 mins by train to the center of brussels, 20 mins by car from the airport. Festy, people drive on the RIGHT side of the road here

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Leuven is a university town, with a big restaurant- and pubculture. It's got an old center, and a market square lined with pubs and restaurants. In summer months, it's stuffed with people sitting outside having a beer, and there's no legal closing time.
Dang, I start to sound like a tourist guide, time to call it a day. G'night y'all.