Even a bigger hard drive has its limits to how many games you can have on it. I mean a 120 gig drive will hold alot of games dont get me wrong, and is a sweet mod for a xbox, but a burner IMO would be the smart buy, cuz you can use it for stuff other than the xbox. I just like the fact that if my hd in my xbox ever took a shit that i would have a solid backup of a game. I had a friend lose a harddrive and along with it his 50 games on it. Depends what you want to do with your xbox. If its just games like me then i can still put a couple games that i am playing on the drive until i finish them. And load up a few more when im done, other than that i have a good dvd to play in the meantime. Choose wisely!!