I am shopping for a good used workstation synth and seriously considering a Korg T1, T2EX or T3EX. I am curious what the major differences are between these three. I am leaning toward the T1 for the 88 weighted keys, and the 3.5 disk drive. Does it have less sounds than the others? What are the benefits (besides size and weight) that the T2EX and T3EX have over the T1? I confess that I am have always been a Roland user, but my boards were stolen from my home studio and I have to start over and decided to go with something different. Thanks for any help!