Playing with Final Render whilst working on a project for University (an animation, surprisingly). The Shadow mapping in fR is absolutely amazing. I haven't even tried the ray-tracing yet - no time while I'm working on this project - but it looks like it's going to be spectacular. Then then there'll be the other amazing stuff...
The lighting in thsi thing is fantastic though.
Suffice to say, it's wonderful what a little bit of decent lighting can do to an otherwise fairly old mesh.