Thanks for your interest in this question.
Goal: I would like to know how effective it really is to configure a hard drive (specifically a 7200 RPM HDD) and boot Mac OS X, Windows 7 and some sort of Linux operating system on three separate partitions.
Background: I have attempted setting up a triple boot with the OS X and Windows 7 already installed. The Windows 7 partition became corrupted when I installed Ubuntu. I did some research afterwards and found some information about converting the hard drive form GPT to a hybrid MBR for the the operating systems to run correctly. Is this still true? Here is another link for more info about hybrid MBRs if anyone is interested: Risks of hybrid MBRs.
Ultimately, I would like to know the following:
What is your experience with triple booting?
How reliable was your setup so that it would not fail? If it did not fail, how did you set it up?
What suggestions or other options do you have for working with three operating systems with one computer?