I and many others have found a Mac compatible SSD drive to be the SINGLE BEST computer upgrade ever experienced. Regardless if your MacBook Pro tower, Mac mini or iMac has SATA II or SATA I speed controller -- Intel's XM-25 series SSD delivers reliable performance for OSX. It benchmarks slightly behind SandForce controller SSD disk drives from OCZ, SuperTalent, Corsair, Patriot and others.
In a nutshell: Top performance in an Apple compatible SSD:
For those with 3.5" standard drive needs (such as putting an SSD into an iMac or Mac Pro tower) -- Icy-Dock SATA Drive Converter instantly converts any 2.5" laptop size SATA SSD into a standard full-size drive form-factor.