hi, i have had a little experience with autocad and 3ds, and have downloaded blender so will also be giving that a try. i was just hoping for some advice before investing a lot of time into something that doesnt suit my needs. i have read the wiki, and some posts, but they dont seem to help me with what i would like to know. i would like something with the following features at a minimum: 1. customizable units ( cm, mm, m, inch, etc ) and ability to enter values for dimensions via keyboard. i know most apps have this, but i have also seen some that dont. 2. ability for multiple viewports, with separate backgrounds for each which can either be locked to zoom or not. 3ds 9 does this but it has a bug where backgrounds move even when locked, and resize randomly. this is even after applying sp2. 3. option to edit at poly or vertex level, with some poly mod built-ins like bevel, extrude, etc. 4. not bloated. 3ds 9 is amazing, but i would never need to use a tenth of what it offers. keeping the above list in mind, what would you suggest would be the best / easiest 3d tool to try, keeping cost out of the equation? thanks..