I recently did this myself, although I went 20GB to the 60GB since it was half the price. I'm unsure about the gamertag issue - I know that you can use a memory unit to transfer your gamertag to other systems.
As for transferring the files from 20GB to a bigger Hard drive, there are two ways. If you just want to keep game saves, etc. you can use a Memory Unit. If you'd like to transfer everything, including gamer tag, you can purchase a "Xbox 360 Hard Drive Transfer kit" for around $13 from microsoft. This will wipe the 20GB, but will transfer EVERYTHING to the new Hard Drive :) Note that if you purchase a retail 120GB, the transfer kit comes included for free.
Here is a link with more info: http://support.microsoft.com/kb/937279?sd=xbox
razoredge13
Good to hear that it comes with the 120 gig model, I might just do that. Thanks for the help
Log in to comment