I had a Canon EOS 10D since 2003 and now have the Digital Rebel xti. I've ordered regular prints, 8x10s, and even a 20x30, all with spectatular results. Either EOS or Digital Rebel will do well; as said before it's the lenses that truly make the difference.
That being said I know some PAOs that swear by Nikon and some that swear by Canon. Both are solid, but once you've started investing in lenses for one brand you're pretty much going to be stuck with that brand for life unless you're filthy rich and have a lot of money to burn.
That being said I know some PAOs that swear by Nikon and some that swear by Canon. Both are solid, but once you've started investing in lenses for one brand you're pretty much going to be stuck with that brand for life unless you're filthy rich and have a lot of money to burn.