I had problems with my first BB so im going to be sending it in this weekend and getting a new one ... is there a way that i can keep my existing apps ? or do i have to re-buy them all ?
Yes for the most part you can keep them. Did you buy them from app world or from Crackberry.com store which is run by mobihand? Not sure how app world works it but at our store you just log in to you account via the website (or your berry) and then go to the my account section and do a PIN Change which will regenerate all your codes. You can transfer the apps via a 3rd party app backup or you can download them again also from the my acounts page.
Posted from my CrackBerry at wapforums.crackberry.com