Well, first off, this belongs in the Bags And Cases
I think it really depends on how much gear you will have in the FUTURE. Will you have to carry multiple bodies? Flash and lighting Equipment? Long Lenses? Laptops? And will you ever have to carry every major piece of equipment you own?
I want to get into landscape, so some country walks will be required.
IMHO, If you are carrying a lot of heavy equipment for a long
time, then there is no bag that is as comfortable as the Lowepro Vertex Series (100-300). It s a bit pricey but i LOVE it, and i dont think you'll ever run out of room.
If you have time i have done a video review of the Vertex 200AW Here
have it relativley maxed out , carrying:
-Nikon d300 + Mb-d10
-Tamron 90mm f/2.8 MACRO
-triggers, lens hoods, caps, cords. cables, ect.......
Nikon D300+MB-D10 | Tamron 70-200mm f/2.8 | Tamron 90mm f/2.8 Macro | Sigma 10-20mm
18-200mm VR | 85mm f/1.8 | 50mm f/1.8 | SB-600 | Manfrotto 681B & 3232 Monopod--190XPROB & 488RC2 Tripod