Mark
CreativeMountainGames.com
iCon 2009 is coming again in April - Four Ugly Monsters
The one inside MapTool isn't nearly as fully featured as the standalone version... but it does let you roll init, order, cycle through, delay/ready... pretty much everything else is easily handled by MT anyway. It works well for our group!
I was actually about to post asking which of the VTTs out there were the most user-friendly (regardless of whether they're free or not)