Digital SLR cameras are more costly than your target price.

Your Olympus OM2 lenses can not be used on any digital camera.

Olympus has several good digital cameras, but all of their cameras that cost under $200 are point-and-shoot cameras with few manual controls.

The Canon A75 (under $200) is more than a point-and-shoot camera.
It also has manual controls that gives the photographer the ability to control the results.

3 megapixels will produce very good photographic prints up to 8 X 10 inches.

Wide angle lenses can be attached to the front of digital cameras, but tend to be rather expensive.

There are many programs that will let you stitch photos together. Just go to:

http://www.google.com

and search for --> photo stitch

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