So I've been using Soldiworks at work for 15+yrs. and recently I've been asked to do some freelance work. All I had personally was a copy of Cadkey99 which I had used for may years in the past. It's working, but I'm thinking I'd like to do more, but Solidworks is quite expensive to start with. What programs have people tried that are either free or inexpensive that would be suitable to use for a freelance designer looking to do 3d mechanical design and drawings? Also any suggestions for how to advertise and create a client base would be helpful.