Hard Drive

Just what I need!
I just bought a second hand notebook computer, a bargain in the Police lost property auction. It works fine, but the hard drive is decidedly trivial in capacity....
I'm going to fillet the old drive, and transplant a 250 Gb 2.5" Western Digital drive into its place. The WD drive is, when I look at it, a tiny engineering marvel, only 2 and a half inches across, yet it spins at 5400 rpm, and stores 25,600 times as much as the drive pictured.
Oh. And it costs less than a tank of diesel.