[gTen]

The best card would be a class 6 16gb..as for class 2 16gb those you can get for 20$ if you look. (for the record the 32gb card is class 2 so its not worth it either way)

Class 4 and 6 16gb on a deal go for around 35$ (you want the class 6 if you got a choice but class 4 is fine, class 2 is usually slow for some operations)

All microsd cards are pretty much generically the same..brand don't matter too much..BUT you have to make sure you don't get a fake card. And by fake, some places sell cards that did not pass QC from the manufacturer. These are the cards that you want to avoid as they can have data loss and other issues.