I too wanted more storage for my 8300 and bought the Kingston microSDHC 4G card from newegg.com, around $45 including two adapters. However it didn't work. :( I tried resetting the BB, format the card, no luck. Got sick of it and sent it back, will buy a Sandisk card and try again. A co-worker got a card at the same time, from Sandisk, and it worked like a charm. Just be aware, the card may not work (like most hardware, some are lemons). I read about the 6/8 and above cards. Pretty neat to have a 32G card in your BB, makes for a nice competitor to iPhone and iPods. Well maybe not. Still ways to go.