pro photo hosting

Currently researching the best option for pro level photo hosting. Have done quite a bit of research but nothing really clear has emerged.
Need: Different galleries. Easy navigation betwen galleries (both for me and the viewer/customer). Good security. Password control for each gallery. Option to buy either digitally or in print form. Good quality and reliable printing service. Option to have ones own front end. No shared copyright. The option to put on ones own copyright label and protect against copying. Visible for searches (as per agencies searching for work). No spam or ads.

Any helpful suggestions will be greatly appreciated.

Checkout ExposureManager.

They've got all the stuff you're looking for, and they have been extremely helpful in helping me get my galleries integrated into my own site. I have my own domain as the front end, which then links to the galleries I have on ExposureManager.

The galleries are really easy to set up, you can create your own gallery templates or use one of their pre-made ones. You can create your own photo products & packages, either digitally or print, right click disable, and password protect anything. You can also make a gallery hidden so it won't even show up on the gallery listing.

I've got a referral code if you decide to sign up send me a PM and I'll get it to you.

I'm extremely happy with and fond of smugmug. http://www.smugmug.com

They have everything you listed and the best customer service.