Thanks K'Jev. I may download a copy of Sketchup for the Mac and give it a try. I've also designed mostly with Illustrator and Photoshop since I'm a commercial artist/graphic designer thats what I use 98% of the time. I've worked with a lot of textures designing action figure display bases and scale model car display bases for local customers. I'm really enjoying watching the building process on this weapon and a lot of the other models here from start to finish. Its kind of like watching the behind the scenes making of videos on movie DVDs.