I switched to PC a while ago and never looked back since. You get more for your money and newer technology and if you buy a custom build machine from a known builder, you get to choose what you need and not what someone else decides you need. Get a good processor (not top of the line), lots of good RAM and a great graphics card. AE and Element 3D should be enough for most simple 3d stuff, however for more complex projects C4D is your best option. Blender is free though and really powerful.