Has anyone compared the 5-MP Samsung Digimax A5 with the "UCA-5"
model?. (or used both?)

DIGIMAX A5
http://os2guru.com/go/?to=digi-a5
$229

DIGIMAX UC-A5
http://os2guru.com/go/?to=digiuca5
$247

Both cameras are apparently able to save video only limited by the
storage space (not short clips limited by the camera´s built-in memory
as previous digimax models), but the only obvious difference is that
the A5 uses MJPEG codec and the UCA5 uses MPEG4 (probably at a higher
frame rate?).

But besides that, are there any signigicant differences in the lens or
image quality?

I'm trying to decide if the extra $20 are worth it, or if I should stick to the A5...

Thanks,
Fernando