I dunno if there are software..I'm sure there must be..
found this oldish tut on creating 3d effects.. graphicssoft.about.com/cs/photoshop/ht/3danaglyph.htm and somewhere in the past few posts.. I know I've added in a few more sites that i've found.
If anyone did it..i'd love to know if it works..
and where does one get glasses to see them??