Left 4 Dead has been released on the Mac tonight, and it looks like Steam are again having a sale to promote this.
Both Left 4 Dead and Left 4 Dead 2 are at 50% off. Both awesome games with lots of replayability!
Left 4 Dead - http://store.steampowered.com/app/500/
- £6.49 - 50% off
Left 4 Dead 2 - http://store.steampowered.com/app/550/
- £7.49 - 50% off
L4D 1 & 2 Bundle - http://store.steampowered.com/sub/2487/
- £11.49 - 50% off (but cheaper than buying both separately, saving of £2.49)
Both of these games can be played on both Windows and Mac with only a single purchase on Steam!
Hope to see some fresh blood online from this!