Coffee Appreciation

Need forumunger assistance please.

I have a gaggia classic and an aeropress, and grind with a porlex mini. The grinder is great, but a mega pain in the bum in terms of the legth of time and effort involved (yes, I'm lazy like that). What's a decent grind machine to get?

Criteria:
Accurate with the grind fineness and consistency
Adjustable for different grade of grind
Not toooooo big
Not tooooooooooo expensive.

So, I want to have my cake and eat it. ....Or, have my beans and grind them.....?

I understand that a few are fond fo the following method although I have not used it myself.

Get a drill. Insert driver attachment to drill. Fit attachment over the grinder. Turn on drill.