My vote - better utilization of multi-core processors in the Firefly render engine.
Also, a good background render mechanism for those giant scenes that you KNOW are going to take forever.  I love the one in Vue that just putters along and renders to disk even while you're working on the same image.  Something like that would ROCK!!!!!!!!!!!!!!!

Hugz from Phoenix, USA

Victoria

Remember, sometimes the dragon wins. Correction: MOST times.