Adventure/Events Holster Bag - Help!

[ken1to]

Hello Guys,

I would to request your assistance with recommendations. I'm looking for a good solid holster, water resistant and good carry space... the primary use will be:

Adventure
Hiking + Mountain Bike
I carry my Canon T1i with Canon EF-S 17-55 f/2.8.

Events
Concerts + Street events + Travel + Photojournalism
I carry Canon Ti1 with Canon EF-S 17-55 f/2.8, Canon 50mm f/1.4 and Speedlight 430 EX
----------------------------------------
Please note:
- I'm looking to upgrade camera to a 7d in the near future so something that fits medium size would be awesome. Even if it's a little bit tight =)
- Weight is very important, I'm looking for something "light" to carry of different conditions - a bag with expandable options or add-ons like additional pouch would be awesome.
- Hydro-pack option would be nice to have, since I do a lot of adventure sports. I need to carry and additional camelbak when I'm on a bike... if I could only have just 1 bag for the camera and water would be great but not sure if such small backpack exists.
----------------------------------------
Based on those conditions I did a small research:

I found the LowePro TopLoader AW as a good option since they have AW cover plus you can attach a Chest Harness for stability and front carry (That is just perfect for when I'm a bike or hiking). Which version of the Toploader AW will you recommend? I was looking to the 75 but looks too big and 55 migth be tight if i want to carry anything else but maybe extra cases/pouch attached could be the option.

I'm also open to any other good carry options you might want to suggest, let me know if you think something else will fit my needs.

Thanks for the assistance and all recommendations would be much appreciated

Thanks for your time,
Cheers!

[ken1to]

no suggestions?

[OsmosisStudios]

For street events, concerts and photojournalism I use a belt system: Lowepro's Street and Field system, to be precise. You just get the belt then get pouches for each of the items you carry with you (lenses, flash). Thats mainly for when I have a "base of operations" where I can leave things, be it a tent, car or office.

For travel, though, I use a Lowepro Rezo 180AW shoulder bag. Holds body+grip, lenses/flash and so on.

Your best bet: find a good camera store, walk in with your gear and test.