how can i install counter strike on a Mac

till now i have been using windows
i need help!!!!
how can i install cs in mac.
and all other games.
would a wine or emulators aswould be enough(got dese info from the google).
if yes gimme the procedure to do it.
would be very greatful.
ned your help very badly

cs refers to counter-strike

Games like CS will only be playable in Boot Camp:

Apple - Mac OS X Leopard - Features - Boot Camp

Most games made for Windows wont play in Mac, you need to install Boot Camp to play windows games!