Pole Hill,
I've got the PC version of Elite and it is excellent; very ergonomic, detailed and with fully functional avionics. It is expensive, but one thing to bear in mind is that you don't need an uber computer to run Elite.
Have you started the IMC yet? I found that once I did a few IMC lessons I had a better idea of what I personally wanted from a sim. If you haven't started then don't spend any money yet would be my advice.