With regards to how much you can use you can use two usb flash drives up to 16 GB each for a total of 32 GB

Visit

http://www.xbox360achievements.org/

It sucks that it dosent work all that great with ipods and not at all with an ipod touch.

Yes if you use a USB flash drive you can easily transfer your profile to any Xbox. You can even save your games to thereso you cancontinue from one console to the other.

Use this link for more information:

http://www.xbox.com/en-US/storage/

You can use up to 2 usb flash drives at once and only up to 16GB each even if there is more memory than that on it

you can, just only up to 16GB on a stick and you can have up to 2 of them in your console at once.

Please reffer to theselinks - http://www.xbox.com/en-US/storage/& http://support.microsoft.com/kb/981974

First of all you must be connected to Xbox Live. Go to the "Game Marketplace" and push A. Scroll to "Add-Onns & Extras" then to "Themes". From there find the theme you want. After you download a theme go to "My Xbox", go right one and push A onyour profile. Select "Change Theme".

L4D2 with DLC

Uno

get it if you like bounce the ball to destroy the brick kind of games. but this one comes with a lot of different types of lasers, cannons and other different things not to mention the different types of balls to use. and if you like to complete every level in a game this one will take you a long time seeing as there are thousands of levels with 3 difficulty ssettings.

use your own just make sure you have all the paperwork right.