IT IS A GOOD DEAL, and no 500 games cannot fit. Unless all the games were 4 mb, than yes. But regular games are usually 60 -80 mb. Someimtes 100 but thats really rare and those are just like games like Zelda Phantom Hourglass. But yes it is a good deal. You do not need a 2 GB sd card unless you are planning on having like 40 games on your sd card and playing them all the time. It is very easy to add games and delete games so u would only need like maybe 20 or 10 on at a time. This is a link for ds roms.