you take the right side of the console off and put your hard drive in
Yes! If you open the case on that the old Xbox 360 Hard drive was in, you can just take the hard drive itself out, and put it in the new Xbox 360 Slim.
No, the new xbox 360 slim basically has a hard drive like a block, way better than the original xbox 360's long hard drive.
no
You tell us. If your Xbox has a small memory hard drive, just buy a hard drive. If your Xbox has broke, you need a new one but why not why a arcade edition. Your hard drive will fit in there.
NO
You have to keep your hard-drive otherwise when they send a new Xbox, you may not get the Hard-drive back.
Your old game saves will be on your old hard drive/ memory unit. If they are on a memory unit then it is a simple issue of plugging the memory unit into the new xbox and copying the old save to the new hard drive. If you have an old hard drive you can plug the old hard drive into the new xbox and play from there. If you want to transfer the saved games from the old hard drive to the new hard drive you need a hard drive transfer cable and follow the instruction to transfer the data from the old hard drive to the new one.
I believe that the 4 gb xbox 360 you are talking about is the new slim. There is no way to use your old hard drive with the new slim xbox. You will need to buy a transfer cable to move your saved games to the 4gb hard drive.
The prices for a 20GB hard drive for an Xbox 360 tends to vary depending on whether it is a new hard drive or a refurbished one. A refurbished hard drive sells for approximately $30 but the prices for a new hard drive can be priced as high as $80.
buy a new hard drive?
on some they do
Yes, you can. Simply remove the hard drive then insert your new one. Unless your Xbox LIVE account is on the old hard drive, then it will not affect your Xbox LIVE experience. If your account is on the old hard drive, you can move it by selecting it inside of your Storage settings, then hitting Move. After that, just choose your new hard drive and the transfer will begin.