Here's a great LowePro camera backpack design shared by Habez [Thanks Habez]. The DSLR Video fastpack was released more than 6 months ago, but it's pretty much set up for something I would use. I normally always carry a laptop (mobile blogging) and enough camera equipment to do a basic shoot including a small portable tripod. The LowePro FastPack 150, 250, and 350 are designed to hold a decent amount of Photo or Video gear for fast access. The largest 350 version is wide enough to support a 70-200mm Lens, and room to store a large 17" Laptop, along with Tripod holder and Rain Cover.
Other highlight features
Security Flap for additional protection to outer compartments, Built-in Memory Card Holders, 180-degree Side-entry Panel, Adjustable Dividers, Triple Compartment Design, Harness Pocket, Outer Accessory Pockets, Mesh Side Pocket, Tough Water Resistant Outer Fabric, Side-entry Access. Starting at about $100 dollars for the smallest on Amazon (Click Here).
LowePro DSLR Video FastPack