Please search the forum - this is all covered in numerous posts. You didn't specify what Windows you are installing. If it is XP or Vista 32, then the Boot Camp process will get you all the drivers you need. If it is Vista 64, you may have to search for some but again, there are posts here which will guide you. Remember as discussed above, the MacBook has some hardware limitations for gaming, so be aware of that. Also, before using Boot Camp, print out the instructions that come with it and follow them exactly. You'll need a retail or OEM (not a manufacturers disk) of XP SP2 for an XP install under Boot Camp.
But I strongly advise you to browse this forum because most of your questions have been addressed.
Good luck