I need a memory card for my digital camera can I buy any brand?

or does it need to be the same brand as my camera?

Yes, as long as the card is the right format for your camera, you can buy any brand you like, though the camera manufacturer will try to tell you the one they make is the best...it's usually just the most expensive.

best buy, circuit city, fry's electronics, any electronic store

The brand doesn't matter, just the format.

it doesn't matter on the brand as long as it's the certain type of card.

SD probably

any brand will do
but, I have heard that sometimes sandisk has trouble with sony cameras