Without wanting to get into a debate about the merits of the 50D, I felt that the 15MP was too much for a 1.6 crop sensor in respect to high ISO performance. I liked the big LCD screen and the microadjustment but I was prepared to wait for the 60D in the hope that Canon would see sense and knock the resolution down to a more sensible 12-13MP.
The launch yesterday of the 500D killed off any hope of that. Canon won't launch the 60D with less than 15MP and I can't see how they can improve the high ISO performance with a 15MP sensor. Also, I would imagine that the 60D will follow the trend for incorporating a HD video capability..... something that doesn't interest me.
So given that I don't want to sell up all my gear and move to Nikon, it looks like I'll have to bite the bullet and settle for the 50D.......... unless of course I come into some money and can afford a lovely 5D mk II 



