I want/need to get a new bag. My Tamrac Adventure 6 isn't big enough to carry my D50 with 80-200AF-S attached and it is a huge hassle to mount/unmount the lens every time I want to use it. This lens will be my main lens for a while since baseball season has begun. I want a backpack style bag and would like to get one that will also accomodate my 17" HP Laptop along with allowing for some expansion of my lens collection. My current setup is D50 50mm f/1.8 18-55 kit lens 80-200 AF-S 12-24 Tokina SB-600 Monopod Tripod My next major lens purchase will likely be either 28-80 or 17-55 to cover the mid range zoom. I would also like a bag that meets airline carry-on restrictions. Any recommendations? I saw a Kata HB-207 in the FS section last week and it looked awesome. The Lowepro CompuTrekker Plus AW may be the next closest contender. Are these backpacks overkill for a day out hiking (laptop would not be included) or at the zoo? I'll keep the tamrac for a small pack so this won't be my only bag. Down the line, I may like to get a 300 f/4 or another body so I'd like to make allowances for as much as I can.