Thanks for the advice and pointing me in the direction of more gadgets and toys!
I'm still considering the street racer 2. I tend to use bags in one of 3 ways:
(In any event, I want the ability to be able to leave my camera mounted on the 70-200 or another lens if I wish)
1. Hiking / traveling where I will hardly be putting my bag down at all, camera will be out on a sling and I want quick access to my lenses and want to keep the bag footprint small - the Tamrac Velocity 8x seems to do the trick quite well - but can't really put it down without front or back getting dirty.
2. Going to places where I will do a combination of wanting quick access to the bag, carry a bit more gear, and be able to put it down and shoot from - I definitely prefer hip bags (or ones with waist straps) I'm not quite ready for a full on belt system. The TT Speed Racer seems like it may be a good fit.
3. Wanna take all my gear, toys, gopro, etc - still usable for hiking, but not as critical to have quick access - mainly for taking everything from point A to B - I have a Lowepro Flipside 400 AW on order for that.
For the time being, I don't think I need a bag that can carry a laptop. But who knows what next week will bring!!
I have a photographic memory, just wish I'd remember to take the lens cap off more often! 
1DXII - Canon 300 2.8 IS, 100-400 II, 70-200/2.8 II, 24-70 2.8 II, 85 1.8 - 1.4x II - F-Stop Lotus Backpack - ThinkTank Retrospective 20 & Speed Racer V2 - Peak Design Slide Flickr Collection