I finally broke down a picked up a Disting Mk4 after initially writing it off as too menu-divey. It's a very valuable tool, but not much fun to use. I would definitely recommend it for your remaining 4hp due to the huge amount of utility it offers. Just know that you will be referring to the manual... a lot.
-- farkas
Yea I'm a little hesitant about the menu-diving style of the mk4.. I tend to enjoy "simpler" gear that is more plug-and-play