Yea its good idea, I am thinking about doing it I have 6200 Mhash my self but with the next increase will deflate any volume i would create so hard to say with that deal if i was to offer it my self.
so if you offered lets say 2000 mhash per day for $30-$40 a day that would make you more money and still give the person enough with the btc to call it a good investment with in a week.
Unfortunately I dont have that mining power, that's where the [SMALL] tag comes in..