SirGreenSock - Nice program. I downloaded it just after you posted.
Also agree with Slash and Mirana. Some games are entartaining but don't eat much time. Usually when they have gameplay divided into short levels or matches. For example recenly I played minimalistic freeware platformer called N. It has one hundret of short but quite difficult levels. If I can't win some I just give up and try it another day so it's not very addictive .