Buying a replacement 360 and using my existing Hard Drive My 360 RROD which turned out to be a bad Power supply.  Got a replacement for about 20 bucks.

Then my Optical drive stopped working so I got a replacement for about 20 bucks.

Turns out there is an eprom key that binds the optical drive to the main board.  So It won't recognize games.  But again I only have 40 bucks into the fix.

So I thought maybe I should just buy a refurbished 360 from Game Stop and just plug my hard drive into that.  My question is, will a refurb see my hard drive or is there also a binding hardware key to prevent me from doing so?  I asked the girl at Game stop and she said it should work but was not sure.  

Cheers