tennyson said:I would say that we're about 50/50 as far as the strategy and beer & pretzel ratio goes. We like to goof off during game time and generally hang out, but we also don't want a simple repetitive game with no strategy. Nothing that's excrutiatingly game heavy, but has substance nonetheless.
As far as themes we'd like to branch off from traditional D&D fantasy (possibly sci-fi, warfare, gaslamp, etc.), and our games usually go for around 8 hours or so. I don't see a problem if the suggested game was such that we'd have to leave the board set up for a continuation the next week either.
With these provisos, I would recommend you get more than one boardgame! 8 hours is a long time for a boardgame to take to play, and is generally a feature of the wargames. I regularly (fortnightly) have boardgame days, lasting 8-12 hours each, and we get through 5-10 boardgames in that time.
If you haven't visited BoardGameGeek.com yet, I strongly recommend that you do so. It's the best place I know of to find out about the world of current boardgames.
Cheers!