I have been wanting to run a dual drive setup in my MacBook Pro for quite some time, one drive being a smaller SSD and the other a large hard drive. At first it was the warranty on my Mac stopping me from doing so, but that has long since expired. The other thing stopping me was the price of SSDs, fortunately they are now under $1 per GB. What finally made me jump was reading a little SSD upgrade guide on Lifehacker.
I purchased a 128 GB Crucial SSD, a hard drive caddy for the optical drive bay of my MacBook Pro, and an external USB enclosure for my SuperDrive.
I can’t wait to get everything installed!