My daughter got a Kodak EasyShare camera for Xmas. It says it can take an SD or MMC card. What is ther difference? Is one preferable over the other and why? Or should I just find the most memory per dollar and not worry about which type? Second question. She also got the Dock/Printer that comes with it. Does anyone have a good source for low price 3rd party paper and cartridges that will work in the Easy Share Series 3? The prices I'm finding for the Kodak stuff are kinda expensive.