Either camera will be easy to use when in Auto mode.
At first look, these two cameras appear to be about equal.
But look a bit deeper and you find that the LS753 does not have the manual controls that someone with your experience would want.
The E550 has Shutter Priority, Aperture Priority and all the other controls you need for controlling the exposure.
The Fujifilm E550 and the more expensive Fujifilm F810 have exactly the same electronics and lens assembly.
These two cameras were released at the same time to cover two different price markets. The F810 has a metal body and the E550 has a plastic body.
Some people think the E550 has outdone its more expensive brother.
Here is a review of the E550:
http://www.dpreview.com/reviews/fujifilme550/
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We are close to buying our next digicam and would like your opinions about the Fujifilm E550 and Kodak LS753 cameras. What are your experiences, good or bad? How much did you pay? How do these perform in day-to-day use? I consider myself a serious amateur moving slowly from film (15+ yrs exp.) to digital (2+ yrs exp). I want good quality print, some control with exposure, but also convenience and ease-of-use, all for around $350.

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