BIOI started creating 3D graphics using POVRay on an Atari ST (when it took all night just to render a few reflective spheres), then moved onto Imagine on an Amiga 1200. I got my first PC about 7 or 8 years ago and went back to POVRay and used Moray for modelling. Eventually, after trying out some demos of various programs, turned to Cinema 4D since I found it the easiest to use.
Graphics are a hobby for me and I've never truly mastered 3D but I just love trying. With more time avavilable these days I'm finally starting to improve. But I guess I just don't have the talent of many of the artists here. Doesn't stop me enjoying it though!
I also enjoy creating images with Terragen, various fractal programs and even dabbling with illustration.