A 'dress shirt' is by nature ment to be worn with a tie. Tho some are more casual. If you are looking at shirts with a spread, point, or a tab collar - they are intended to be parternered with a tie.
Here is an example of those collar styles
http://knol.google.com/k/men-s-shirt-collars#
It's common to see a button down collar, wether traditional or a 'hidden type' worn sans tie.
I think what you are looking for is a mans 'casual' or 'dress casual' shirt with a collar.
Stylish shirts of this type, probably wont be found in your local discount stores. I'd suggest Neimans or Nordstroms. You could also look into various printed type shirts, some more garish than others. Ask Brad from MojoHost, I'm sure he can direct you towards his supplier
