banana man has mentioned samsung as having a good product. i have no idea to what extent it is a competitor to the lumacom system, but obviously the market is huge, and maybe there will be room for more than one player. for those that are interested, i did a google search, for the samsung product, and the following web page was one that i found
http://www.presentationmaster.com/2003/08_aug/news/pr-sams030811.htm