RatedPC has posted a review on the Romtec Trois HDD selector
Here is one scenario: on one hard drive you can have a Linux distribution installed which you use for your work, while on the other you have Windows98 for gaming purposes. By simply selecting the drive which has your desired operating system, the computer will boot excluding the other drive. Not only will Trios take the hassle out of using multiple operating systems, It also gives you peace of mind knowing that whatever should happen in one operating system, it will in no way influence the other. Still that is not all this nifty piece of hardware is about. Read on to find out what the Trios will do for you.Read more