Disklavier

Hi!
I ask you to know if it's a good or bad idea...and grab advises to  
make it real!
I want to make a blog which allows anyone to post his best disklavier  
files ( own creations, known songs that you play, midi files arranged  
to be played on disklavier... all of what you want and what you  
really love to hear on your yamaha disklavier genius!)
So that anyone will can downloads well adapted to disklavier files.We  
won't have to convert midi files, change the pists to first, change  
instruments to GrandPiano, and change the volume...And the list could  
grow fast because we are a lot... I know there is already some files  
on the group website, but the capacity is limited so that no one can  
upload since several years...
First of all, what do you think of this idea?
Secondly, I'm not a professional for website creating, so i need  
advises or help or could let you make it!! ( i won't be angry if you  
grab my idea!!)
I wanted to do a blog with iweb (on macintosh) that would be easy to  
make , but i don't know if peolpe will can post their files...
So i wait for your reactions!!

Thanks to have read this!! and please excuse my english!