The S3 delivers top quality images in a range of professional situations. Whether it's a true 12Mp camera is a moot point, but you'll certainly be able to print your pictures up to A2 size. At a list price of £1,450, it's over-priced compared to rivals, but if you can find it at a reasonable street price it’s certainly worth considering.
Also consider: Canon EOS 20D

FEATURES
PERFORMANCE
BUILD QUALITY
EASE OF USE
VALUE FOR MONEY
FINAL SCORE