All of us will be booting to SSD drives in the future. It's all a matter of when. So here is my question for you fellow Mac Pro users. -Are you already using one to boot with? If so, what size and make? Or -When would you...under what circumstances? For me...I'm keeping my eye open but will wait for 400 usable GIGs at under $600. I also want to wait for one more generation of development/performance.