Been there - done that. Iv'e been using AC3D for almost a year now. I used several 3D packages (and own some of them) and I still look at other packages now and then (sorry Andy
ops: ) - trust me AC3D is the most intuitive and easy to use modeler I have used. That being said, 3D modeling is not easy or simple to pick up, have some patience with yourself and the program and it will happen. Look through the Tutorials section on the forum, and download and read the manual (I found it easier to read when printed). Last but not least, dont be afraid to ask questions here on the forum (how do I or how do you etc.), you will find plenty of my questions in there.
Don't give up and good luck.
Art