Guild Wars, It's like Mechwarrior with mages, swords/axes and such. You pick a class, pick a secondary class, make your weapons, pick 8 out of 100s of skills and do your best to kick *** with your team mates. Also Advance Wars DS is great for offline distractins.
Beyond the ones in my signature, i´ve been playing a lot Megamek lately...
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Currently Playing:
Megamek (latest dev version with home-made random campaign generator), Dominions 3 (with CBM) and Sins of a Solar Empire (heavily modded)