If it is on your hard drive then yes you can pop out your hard drive and play your content on another xbox. I always play COD WaW Nazi Zombies maps on friends xbox that is on my hard drive.
if you download it onto your hardrive you folders will be fine but if you download it and reformat the system all you files will be lost so i would advise to put all your folders onto a internal hardrive (portal hardrive or a memory stick) i also wouldn't advice downloading vista because i had vista for about a year and it started to randomly i would advise downloading windows 7 or buying it :/
I can insure you that you will not be caught by Microsoft and banned, Microsoft can not track your consol but can track your online account, but it don't matter since you got your Xbox 360 modded into the hardrive not on your online account so therefore Microsoft cant ban you and you are free to download any content online.
Anyone that has a computer or smart phone can download content for you and load it to a disk or jump drive. It would be up to the person to agree to the download and agree to the content of the download.
Yes is possible to do a hard drive recovery from home. If you had your files backed up on an extrenal hardrive it would just be a manner of placing them back on your computer once you reinstall windows. If you did not have your files backed up, it may still be possible to recover the files if you get a usb connector for the hardrive and special hardrive recovery software which is available to download on the internet.
If you are playing online, it will save the world saves to your hardrive, and if you are playing on the downloaded version, it would depend on where you saved the file. If you saved it to the hardrive (which is default) it will save the world files to the hardrive, obviously. If you saved it to a flash drive or removable storage, it will save the world files to that instead.
you can't you would have to hack into there hardrive
I would suppose so, because the fact that you can download psvita content. Other than that I'm not sure of.
Although you wouldn't be able to download new content - existing stored content would still be viewable.
if you mean as in data storage it would be either a 7200 rpm 1 terrabit hardrive or a 10000 rpm 300 gigibit hardrive
They would have different content and perhaps a different format.
It all depends on what your looking for .The elite is more money while it is a different color and comes with a 120 gb hardrive . While the arcs come with no hardrive and i believe cost around 150 USD dollars at walmart. I would suggest you buy a Xbox 360 slim it comes with 5 usb slots, 250 gb hardrive and a built in wifi receiver. ( so you don't have to buy a wireless receiver. That is if you are using wifi.
Yes but you have very limited space so i would reccommed that you get one