I have the opportunity to purchase between 15-30 digital cameras for classroom use. Any suggestions on make/model and your own experiences are appreciated. Thanks in advance.
Budget: the closer I get to $100/camera the better.
-use AA batteries (rechargeable)
-cheap enough to be dropped and everyone remains calm
-accepts memory card
-shoots 640x480 video with sound
-has a real viewfinder
UPDATE: Thanks to all whp responded. Looks the the Canon A470 is the best bet.