I have continued to try the all around in one camera for vacations and family outings. I have used more than a few p&s cameras with disappointing results, for me. I know many will disagree but as I said, for me. I just received the rebel T1i and ef-s 18-200 IS lens and tried the combo out today. Although this lens is not USM, it focuses plenty fast as seen in this sequence.

Five of the six shots taken in this sequence, shot in AI Servo, multi shot, single point center focus, wide open, Av mode, ISO 400. I really am initially pleased with this little camera, in fact I plan on having a second prime attached and use as a backup to my 50d when shooting sports.

I have used the 18-200IS and the expensive 17-55IS at low light concerts. I find that (in the 18-55 range) the 18-200IS does acceptably well at f/5.6 where the 17-55IS does at least as well at f/4. So the difference in usability for low light is essentially 1 stop. (The 17-55IS is also very good at f/2.8 but that often does not give enough DOF for my applications.)