Recommend me a courier/messenger bag for commuting

For the last five years I’ve been using a Crumpler ( www.crumpler.com.au ) Fux Deluxe and have been pleased with it. Unfortunately it was lost by an airline. I was going to replace it with the same bag but then I thought I might look around for something different. There isn’t really a lot on offer in the local shops where I live in Australia so I was considering ordering from overseas.

I’m after something with a broad adjustable shoulder strap. Something that’s made of pretty tough material. It doesn’t need to be water proof. I’d like something that has a shoulder stabiliser strap rather than the waist strap. Ideally I’d like something a little smaller than my old Crumpler (12.5x24x8.5 inches) but as long as it isn’t huge, I’m happy.

Here are two of the brands that I’ve found so far
http://www.timbuk2.com/
http://www.chromebags.com/
Does anyone have any comments on these brands?
How about ordering from them internationally?
Any other recommended brands/models?

Thanks

Check out LowePro and Tumi (ballistic version).