well i think you're in a bit of a pickle; 3d and "not complicated" doesn't really go together. All 3d programs have a very steep learning curve at the start, and even more so if you're teaching yourself, It won't really matter which program you get it will take time to learn and some dedication to get good at it.
I use maya, but that program is as complicated as 3ds max, although it is a little more user friendly than max is.
I know there is a large cinema4d group on this forum, and from what i hear it's a good program to use.
If you don't want to spend the 1000's of dollars for a new program AGAIN... then I would suggest using blender 3d
or even try out maya with mayaPLE (personal learning edition)
blender.org - Home
Autodesk - Autodesk Maya - Personal Learning Edition
if you decide you like maya better, then you can ask them if they'd take 3ds max back in exchange for maya.
but i do suggest you try out some demo's or explore the free 3d software scene before you go out and spend 3-7 thousand dollars on the program