Some people say Pandemic isn't complete if you don't have at least the first expansion. I haven't played it myself but it does sound really cool.
...
So I added more games to my collection.
Got an expansion for Cosmic Encounter, basically just to get a sixth player (and a bunch more alien powers, yay!).
Evo, a sort of area control game where you evolve dinosaurs in constantly-changing climate, and a bidding mechanic. It's made by the guy who made Small World, and it's quite fun.
Finally, Lords of Waterdeep, which is a DnD-based worker placement game. There's an episode of Wil Wheaton's youtube show about it, it gives a small idea about how it works. Seems fun.
I'll just note this geeklist on boardgamegeek, it's for an online store which sells some games for a pretty good price, and also, at least for Canada, free shipping and no taxes.
http://boardgamegeek.com/geeklist/71514/buying-board-games-at-bookdepository-comMight be worth checking out
That's where I got Lords of Waterdeep for 38$ (instead of the usual 45$+tax+shipping).