Who doesn’t remember playing with lego blocks as a kid… I remember having a big pail of them my self. I kinda wish i didn’t sell that pail of lego (ok some mega blocks but who cares they were compatible) . I turns out that Lego them self has a virtual brick program now… i still have a 3rd party app that was meant for that and its quirky at best.
I found LEGO Digital Designer when I was browsing a mac freeware site…. they were giving a download of version 1.6 of the software.
Check out LEGO Digital Designer @ http://ldd.lego.com/