Alex, if you stopped by in Brugges (heh), I can hook you up with a guy who does nothing but film shooting
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Still, I'd stick with pro C-41 (also called "negative" or "print" or "chromogenic") film if this is important to you. If you've only got one camera, it's handy stuff to have - it reacts better to pushing (underexposing), with less grain.
Granted, this applies mostly to Kodak films, as there's a greater difference between their pro stuff and their consumer stuff - you might find that some Kodak MAX film is made in China. Fuji, on the other hand, tends to (from a practical point of view) use the exact same emulsions for both some of their consumer and pro film, with the only difference being in the quality control and the handling. A good example are the "Press Packs" of Fuji's Superia film - the same as their consumer Fuji film, but kept refrigerated in transit and with better quality control.
Anyway, to end my ramblings, I'd go for the following:
Low Speed: Kodak Portra 160VC, pulled to about 125~100, to help keep the shadow grain in check. You'll lose a bit of saturation, but OK when using 160VC (Very Contrasty?) for portraits.
Mid Speed: Kodak Portra 400VC. Another reason I recommend the "VC" versions of these films is that they're a bit cheaper than the "NC" versions.
Highish Speed: Kodak Portra 800. Noticing a pattern here? Don't be afraid to push this to 1600 if you have to.
I don't mind using Fuji films, but I'd rather use Kodak. Fuji tends to have a slight greenish cast. Kodak tends to be warmer.
(And hwblanks, unless there's an Antwerp, Belgium in the US, I don't think Alex qualifies for any of those deals.)