I took a spin through eBags, and I have to be honest.. for such a big site, the bags look really cheaply made.
These are the best two I found that appear similar to what you want in a bag:
http://www.ebags.com/trager/seattle_mes ... 2020014194
http://www.ebags.com/trager/hipster_lap ... 2020014194
However, I don't like the strap on either bag, and looking at the reviews, it straps & bucklet appear to be a common negative point because the positioning and strength of the straps appear flawed and uncomfortable. On one bag, you can't remove the straps, and they're using cheap plastic where you something more durable. I think both bags will break on the buckle or strap over time. Too bad the straps come from the back side... it doesn't help the bag support it's own weight.
Plus, I don't think you want anything that big anyway, and I couldn't find anything else for a guy on eBags.com
Still, I think this one is the best option for your needs.
http://www.mec.ca/Products/product_deta ... 8492554368
Nice quality, appears to have strong straps & closures, and nice price too. Plus, the company has put a lot of thought into aspects of the bag, and many points are addressed in it's design. A consumer might not even realize some the design points are necessary in a good bag. Plus many of their other bags appear to be very well designed with even more points addressed. One of their bags has reflective tape inside of it to help you find items, and if you're looking for a laptop bag, that's a good one.