Best backpack for Lenovo ThinkPad T430

Does anyone have any suggestions on a great backpack for a Lenovo ThinkPad T430 (14.1" Laptop) ?

Here's what I'll be toting around:
T430
Skinny portable keyboard (no num pad)
Laptop stand (size of an ipad)
Small wireless mouse

I'm more into the slim look but want to have enough room for the above things as well.
Here are some backpacks I have been looking into:

Lenovo Thinkpad Ultralight backpack
A Backpack for Those Who Do - Products - Lenovo Blogs

Case Logic 14” Laptop Backpack
Amazon.com: Case Logic DLBP-114 14-Inch Laptop /MacBook Air / Pro Retina Display Backpack (Black): Computers & Accessories

Belkin Slim Back Pack
Amazon.com: Belkin Slim 15" Notebook Polyester Backpack, Black/Light Gray: Electronics

 

Personally, I just use a plain ol' LL Bean backpack for my Thinkpads. They're tough enough not to need a specialized laptop backpack. So pretty much any backpack that can fit a 14" laptop will do; it's pretty much down to build quality of the backpacks and which one you like the most.

 

There are plenty of options in backpacks just select the one which fits your budget and need.