This animation by Adobe is pretty much going to knock your socks off.

http://blog.wired.com/gadgets/2008/10/set-your-apple.html

So I accidentally let a TV fall on my MacBook Pro last night – and not a light, modern, flat-panel TV, but a heavy ass old-school CRT TV.  When I tried to boot it after gravity played her evil trick on me, all i got was a flashing folder icon with a question mark in it.  I tried some tricks to get the machine to recognize the hard drive, all to no avail. I could hear the drive clicking but not spinning, and the TV did fall on the portion of the laptop where the hard drive lies, so I decided to try my hand at replacing the hard drive.  A trip to Best Buy and I had a 320GB hard drive in hand and a quick viewing of this video…and things seem to be on track. Ignore the awful music selection. If you’re crunched for time, watch this video instead…http://www.youtube.com/watch?v=rhNPchwhQoc&NR=1

Tomorrow I will try and re-install the OS, but the computer recognized the drive and allowed me to partition it, so I am not overly concerned. I anticipate that the re-install will go fairly smoothly – but I will post updates. This new drive will give me 200GB more space so maybe once this is all over with it will end up being a good thing.