I know you are just looking specifically for the MIDI data, but I recently bought EZ Drummer for a really low price and added on three drum kits (Nashville, Vintage, and Classic) which were also on sale. Each of the drum kits, including the default Pop/Rock kit that comes with EZ Drummer has a large set of grooves and fills (e.g., Intros, Verses, Choruses, Fills) and any of the data can be used with any of the kits. I find their grooves to be very natural and usable.
One caution: GM drum mapping will work with EZ Drummer but the EZ Drummer grooves may need to be edited to work with GM mapping. Example: F#3 in EZ Drummer is a hi-hat just like it is in any GM kit; however, EZ Drummer may also have other hi-hat hits on different notes that you will need to translate for GM kits.
This is not really what you are looking for, but if you are interested in EZ Drummer for other reasons, I think you will like the grooves.