Paul I'm totally with you man. Sell everything you don't use. With your new hobby and old obsessions out of the way you no longer need neither the K61 nor the Omni.

Put it that way. Instead of collecting dust at your place they could be in good hands, getting used by musicians and possibly studios. NO harm in selling them. I only see it as a good thing.
...ANd its not like controllers and audio cards are hard to find. Should you ever have a change of heart and decide to give soft synths a fair chance you can pretty much do it any time. Its not like anyone is locking the door and throwing away the keys you know.

-ED-