I saw this page and felt in love instantly of the models: http://www.beertaps.com/refdrafdis.html
The prices are “reasonable”.
There’s a home version from the guys of Heineken, made to fit into their 5 liters barrel: the Beertender (http://www.beertender.com). But it’s very expensive and only works with their own brand. Anyway, lot of clones with lesser price have quickly appeared in the market ;-)
This kind of dispender, definitively IS NOT my cup of tea: http://www.friendlydrink.com (“funny” but poorly professional)

