I got my fist PS2 last week (never had a PS1 either and only save my games on the hard drive in my Xbox, so I'm new to this memory card thing). I bought one of those yello Nyko PS2 memory cards for it ...

Memory developers Lexar Media and SanDisk have agreed to sell the emerging xD-Picture Card, a removable flash memory card format that's gaining traction by riding on the popularity of digital cameras.