Electronic door - Management hens

Hi,

I would like to do this : Kit portier électronique - Ducatillon
What hardware do I need ? ( Arduino.. ok and .. ? )
Are there any examples on the use of motor powerful enough?

Unlike the example, the clock setting is internal

Thanks

Martin.s

Previous chicken coop discussions that might be of interest:

http://www.google.com/search?q=coop+site%3Ahttp%3A%2F%2Farduino.cc%2Fforum%2Findex.php&hl=en&num=100&lr=&ft=i&cr=&safe=images