I have just set up a new challenge beginning January 3 and invite you to participate.http://www.fatsecret.com/challenges/6-weeks-to-100-push-ups-2011/Home.aspx
This challenge is one that I am looking forward to attempting. The program at http://hundredpushups.com/
is laid out much like a marathon training schedule and requires nothing but time and commitment. There is no cost and no equipment needed.