As a Belgian (yes we do, in fact, exist) I'll give you some pointers for Belgian beers:
Stella Artois is a typical Belgian Lager beer that's exported quite a lot, so you should be able to find some near you. From my experience the taste may differ from country to country though, since it's brewed locally instead of really exported. Then again, it's usualy quite good.
Leffe scales up the amount of alcohol a bit and it may be your best choice for tasting the difference between a "blonde" and a "brown" beer. A lot of the heavier Belgian beers have blonde and brown variants. This should indidcate the general difference to you, but there are still huge differences between, let's say, Leffe and Grimbergen. Also in this category: Tripel. Give it a go. But moderation is key.
There are also many Trappist beers you might want to try out. If you like the Leffe and would like to get something... fuller, they should do the trick.
Also in this category: all other Abbey beers.
Duvel, as mentioned by some before, is also quite popular and a more alcohol heavy drink. It is quite light to drink though, but it foams quite a lot, so drink with moderation. Should be available near you. If you can get Hoegaarden (not Hoergarden which implies whores were involved)you should be able to get Duvel, Stella Artois and Leffe as well.
I'll also mention Palm and Rodenback, since they could also be available close to you and can open up a whole new style of beer for you, if you like them.
And then my current favorites: the Geuze beers. Geuze is actually a composition of several Lambic beers (usualy a couple of old ones and a new one). These are generally sour beers, but the tastes and levels of alcohol can differ a lot between brands. My persoanl favorite is Geuze Mort Subite, but I think Belle Vue will probably be available closer to you. Which isn't a bad choice either. It's an aquired taste though, so bring an open mind
http://www.bierebel.com/biere.php?sort=all linky for the enthusiasts
But my general advice would be: try everything at least once. I'm not just talking about Belgian beers here. Canadian beers are good as well (Sleeman's Cream Ale was quite good, iirc) and should be available to you, I think. My personal experience is that they have a good beer everywhere (alas also crap), but I've always gotten dish water in the US. I must admit though, that on my trips there I usualy didn't have the opportunity to try smaller local ones. A couple from Texas I know and who are beer enthusiasts have promised me that Shiner beer should be good, so you might want to try that one.
May Bilious have mercy on your liver.