USB works great. Just plug in and use your desktop manager to upload onto your BB. If you have the new DM, you will be using a program called Roxio, which at first, I found a bit confusing, but I think I kinda like it now!
Do you also have a SD card in your BB? You might want to purchase one if you dont....
You can safely load a few ringtones on the device memory of the Pearl, especially if you have no data plan. However, if you want to have much of a library you'll need the SD card. If you load up the memory of the phone too much you can lose call logs and sms messages.
Noob Question(ringtone)
i just got the pearl a few days ago but didnt get the internet on it right now...how can i put ringtones on it..maybe through the USB? 
