Attached Link: http://www.annsartgallery.com/freeprop.html

There are links to a lot of freeware modelers at this site. Rhino is very good, certainly in the category of mid range modelers that can do a wide variety of things. The best for you is to get every trial and demo of every modeler you can and see how you like the interfaces. Get some demos of modelers above and below your price range so you can see the differences. (You might be like me and choose to save and wait for something better.)