If you’ve been waiting since 2006 for your chance to play spore and you only have a mac, I hope you have an Intel processor with Leopard installed.
Spore which is due to come out on the 7th of September requires you have an Intel processor and OSX Leopard installed. On the Windows side Spore require XP or Vista and this is probably where the majority of games will be played.
This is not recent news and has been posted for some time, but as this release draws near I hope spore does not end up costing you more than the price of the game itself. On the other hand you may bee needing a reason for an upgrade and this is it.