A few days ago I bought a 1976 version of the board game Diplomacy off eBay because I remember playing it in junior high and having a lot of fun. Last night I had a few people over and played it again for the first time in years, and it was even better than I remembered! The only shortcoming was that we had six players instead of seven, so Italy was out of the game and the board was a bit skewed because of it. I'm definitely looking forward to playing again, though, and it seemed like everyone really had a good time.
For lots of information and strategy, check out the Diplomacy Archive.