I think once you start talking to C700 and C2100 users, you will find equal arguements for both cameras. Both have inspired a very passionate following, and both are extremely good cameras. I have been using my 2100 for about a week now, and have been very impressed. Personally, I feel the C700 is too small for a 10x zoom. And as far as the C2100 being huge, I suppose that is all a matter of perception. I find the C2100 much easier to hold and train on an object than the C700, especially at full zoom. As far as being heavy, I never quite understood where people got that from. The C2100 weighs less than my wifes Canon Rebel G 35mm with attached 35-80 zoom. If you can get ahold of either camera you will be very happy. You also have to take into account the accessories that come standard with the C2100 that are left out of the C700 package - remote, NiMH batteries and charger. You also have to get an optional adapter in order to add filters to the C700 lens, wheras the C2100 is pre threaded for 49mm filters. The C700 also has a slightly smaller LCD, and its shutter speed actually has a faster shutter speed selection, not a longer one. Both cameras can take a 16 sec exposure, but the C2100 is limited to a max of 1/800 sec and the C700 is 1/1000 sec. As far as the ISO settings are concerned, you will find that most, if not all pictures come out best at ISO 100. In fact, most of the newsgroups advise you to lock your camera into ISO 100, as the higher guide numbers generate too much additional noise in the prints. Hope this helps.
The C700 also does not have a low light focus assist lamp either.
The C700 also does not have a low light focus assist lamp either.