Larry,
The PSR-2000 is light years ahead of the 740, providing you with options that are beyond your wildest dreams. If you have the opportunity to try the keyboard out first, you'll be astounded.
Good Luck,
Gary
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PSR-S950, TC Helicon Harmony-M, Digitech VR, Samson Q7, Sennheiser E855, Custom Console, and lots of other silly stuff!
K+E=W (Knowledge Plus Experience = Wisdom.)