Originally posted by K1000_Ron Thanks for your replies, folks. I've decided to return the camera because it was not what I had actually ordered. I had ordered the *ist D, not *ist DL. There are a couple of things about the DL that I don't like so I figured I'll just send it back.
Also, I think that even if it had been what I ordered, I'd send it back due to the sensor "gunk." It wasn't listed in the description and I'm not sure that it would make a good first-time sensor cleaning project.
Ron, I think they should have cleaned the sensor for you before they sent it.
But, be aware that eventually, whatever DSLR you end up with, if you end up using more than one lens you will sooner or later end up with dust on your sensor and probably need to clean it. Don't be daunted by this...sensor cleaning may sound scary but as long as you do it properly and with common sense it's fine. (Remember that when you are cleaning a sensor, you are not actually cleaning the sensor itself but the filter that sits on top of it which is made out of a hard glass).
There are several links on the web that can provide advice. Personally, I use Eclipse cleaning fluid and PecPads. I've been cleaning sensors with every DSLR I've had since the *istD and not once have I seen any problems from this.