SSD drives have great advantages, but are so expensive, but speed is the key and I do believe many distros are quite compatible, Ubuntu, Gentoo, Suse, etc....
Your post did spark my curiosity, and found this great benchmark article you might find good reading. http://www.linux.com/feature/142658
I would think the new "netbooks" like eeePC and MSI with the SSD are a better choice comparied to a normal laptop.