Hi, I have trawled the site for info on whether the Western Digital 1TB or 750GB (12mm high) drives will fit into the Unibody MBP, but can't find anything definitive on it. I have just ordered a refurb 15.4" 3.06GHZ (7 hour battery) with 320GB drive, and wish to fit a bigger drive. Has anyone successfully fitted one? BTW... Gave up on the Arrandale thing, and just went for the Refurb Many thanks, Mike.