Upgrading Xboxes

I'm such a loser. I bought the COD Elite and it's STILL in the BOX. So, I've made a decision...

My younger brothers have PS3. My father has Halo 1 on the computer. I'm giving him my old Xbox.

<---COULOW's 1st 360, Current 360, and soon to be her Parent's 360.

Could I sell it? Probably. However, the cover for the USB connections on the front has broken off, limiting it's worth. It runs like a dream, but I have this GORGEOUS Elite sitting on my desk at home, taunting me. I shall relinquish the Halo 3 box to my father, give him Halo 3 and Hawx, and possibly buy LIPS for Mom, or just give em Rockband. My younger brother's aren't worthy.

Here's my dilemma, when switching consoles, what to do with all my information? Memory card it onto the new one? Have XBL carry over all my game saves? Aren't my past games saved somehow onto the hard drive?

I am a mediocre computer user. Like cars, I know engines, but I don't understand how they run.

How do I do this?