Hi Denise,
I've had the Kata KT DR-467 (green trim) for about a year now. I like it for not being able to hold too much stuff i.e. makes me think about what exactly I want to carry. It's my choice as a carry on for planes as it meets the size requirements, but you can stuff a lot into it. I've had an XTI with 24-105, 70-200 f4 IS, and 430 EX flash in the bottom compartment with a little room for a sunglass case or other random object. It's a snug fit, but not too crazy. It's also very comfortable to carry around for an entire day.
I also own a Lowepro Rover AWII which is monster of a bag and I don't use it very often due to it's size. The Lowepro Slingshot series is also one of my favorite (even though it's not on your list) for just throwing a few things and going out the door with.
Hope this helps.
Ed