Re the Photoshelter template, I'll chat to the PS team as it would be PS specific.
Re: Shortcuts and Custom uploader
In a similar way you can assign custom editors for the Ctl Click flyout.
In the preference pane -> launching -> Assign Specific Editing App -> Custom Editor No1 -> Choose Application -> Nikon Capture
Then when you Ctl Click a file, you are presented with an Edit with... option which will give you Nikon Capture for example in addition to the default editor, such as Photoshop.
It would be great to have a similar option on the Ctl Click -> Upload...
Rather than launching the Upload page and then having to choose the type of uploader from the drop down, it's more about the small movement from selecting a file and control clicking, moving the pointer a short way or moving it a long way from selecting the file to moving to the drop down, not a massive difference but if it's easy to do, it would help.
On the back of this, using the Custom assign uploader, it then would be easy to have a series of short cuts which would launch the specific custom uploader app, which have been assigned to Custom 1, Custom 2 etc.
I hope that is a bit clearer.
Cheers