Ok ladies, I need to pick your brains.

My professor at school is looking to buy 18 mountain bikes as part of an award she received for kids living in group homes in the chicago area. I came back with a price of $250 for a low end mtn bike (Trek 820 for example). I'm trying to avoid getting Target or Walmart bikes if possible. She's looking to spend closer to $100 per bike, and they should be new. I was like alrighty then.

I contacted my old LBS that I rode with to see what he could do. But I thought I'd see if you guys knew of places that sell decent mtn bikes, preferably at a discount for bulk orders or because they're for a good cause.

I appreciate any help you can offer!