I only just found out about VASSAL and after a quick google search found out its closing, the owner said he received a letter from
GW legal ninja's and closing on 31st of July, im downloading now.
For those who dont know, you can play boardgames online, so we can playtest are lists etc.
Here's a link to the VASSAL downloadable engine or something:
http://www.vassalengine.org/community/index.php