Mac Forums

Hey guys.I'm student and thinking about to buy a macbook pro.My question is should I buy it right now or wait? will they change processors & graphic card?I checked forums to find about this but couldn't find any good answer.most people says "it wont be that much different between new one and old one" or " why you want to buy mac you are just student"
these are not the answers that i want.I just want to know will new macbook pro's comes out soon or it takes like a year?
Thanks for help and sorry about bad english...

Check this site for the best times to buy anything from apple: http://buyersguide.macrumors.com/ also, appleinsider.com gives good updates on apple's secrets.