One for OSX fans.
It's an old one I know but decent Mac games a few and far between.
Grand Theft Auto: San Andreas for £3.95. GTA trilogy available for £11.95.http://www.direct2drive.co.uk/buy-action-mac-games-download
Grand Theft Auto: San Andreas (Mac) Download Minimum System Requirements
Operating Systems: Mac OS X 10.5.8 Leopard, Mac OS X 10.6.2 Snow Leopard
Processor: Intel Core 2 Duo Processor
Memory: 1GB of RAM
Hard Drive: 9GB of free hard disk space
Graphics: ATI X1600, NVidia 7300 GT, or Intel X3100 integrated graphics chip