Attached Link: http://www.newscientisttech.com:80/article/dn10922?DCMP=NLC-nletter&nsref=

 I've seen discussions here in the past, so I thought this might be of interest.  Article I found on the New Scientist Tech site.  Home 3D Prototyping machines can be made DIY for as little as $2400 from off-the-shelf components.

"Desktop fabricator may kick-start home revolution"

http://www.newscientisttech.com:80/article/dn10922?DCMP=NLC-nletter&nsref=