Bejewelled 2

If you've got a spare 10 minutes and fancy a simple but fun game, try Bejewelled on Popcap. Addictive Tetris-like fun, with colourful graphics and satisfying gameplay. The gems explode nicely when you line up a good chain-reaction combo.

Bejewelled 2

[Click 'Play Express' - it'll open in a separate window. The 'Action' one is the most fun, says I - can get quite tense near the end. Requires the usual plugins]