Have any of you guys found a useful way of programming the velocity of midi notes using your keyboards?  It's something I'm trying to accomplish to speed up my drum programming.
 
Thanks for any tips!

Have you considered writing two CAL scripts, one for velocity up, one for velocity down and binding them to keystrokes? 

Using a standard text editor, create the Cals using the information below, save them to your CAL folder (See preferences | FILE | Folder locations to see where CALS are stored) and then bind them to the keystrokes of your choice.

Note, these cals simply increment and decrement the selected note's velocities. A relative increasing and decreasing would require different code.

The cal script for Velocity up is as follows:

(forEachEvent
    (if (&& (== Event.Kind NOTE) (< Note.Vel 127))   
        (do
            (+= Note.Vel 1)
        )
    )
)
 
The cal script for Velocity down is as follows:
 
(forEachEvent
    (if (&& (== Event.Kind NOTE) (>= Note.Vel 1))   
        (do
            (-= Note.Vel 1)
        )
    )
)