Crucial M4 128GB - the best bang for your buck?

SandForce driven SSDs look good in most benchmarks, but the ones using asynchronous Flash memory aren't the best runners if they can't compress the data. Drives with synchronous memory will do you a better job but you might consider a drive that offers the same performance regardless of the data used. Like Crucial's M4 128GB which uses a Marvell 88SS9174-BLD2 and has a reputation to be fast and stable.