Whilst it is generally agreed that freezing beans is ok, so long as you pay close attention to both the freezing and thawing of same (a search of the forum will reveal a lot of discussion about this); the same can not be said for keeping beans in the fridge.
Because of the issue with condensation every time you remove the beans, the beans will not only be messy to grind but will also deteriorate more quickly because of the absorption of this moisture. Heat, moisture, oxygen and light are the enemies of keeping your beans fresh for as long as possible. Thats why most of us recommend that you keep your beans stored in a 1-Way Valve bag that is then placed in a cool, dark, dry and airy place (such as a pantry perhaps) that will ensure that the effects of the freshness antagonists is minimised as much as possible.
Regarding cleaning your Rocky.... With beans stored in the more usual manner mentioned above, you shouldnt need to do this all that often; maybe once every three months or so? Quite a few members have discovered that you can substitute the normal hopper lid with one from a "Click-Clack" storage canister, such as those you can buy from K-Mart and BigW, etc and by rapidly operating the sealing device in the lid it builds up sufficient pressure rapidly enough to blow out any remaining loose grounds from the discharge chute. A simple and effective solution.
Anyway mate, hope some of this is helpful for you.....