Hi Vicki,
I completely understand your excitement and believe it or not, I actually researched this very question myself just a few weeks ago when I purchased a Disney's PhotoPass+ CD for my family's upcoming trip.
I was informed by Disney's PhotoPass Service that unfortunately, it is not possible to collect your PhotoPass CD from any of the
Camera Centers located throughout the Disney Theme Parks before leaving Walt Disney World. Your PhotoPass
CD must be shipped directly to your home in the UK.
Even if you could have picked up the CD prior to leaving Walt Disney World, I would have still recommended
that you waited until you got home to ensure that you had plenty of time to view, crop, add borders and enhancements to all
your photos.
If you have more questions regarding this, don't hesitate to
contact Disney's PhotoPass Service on (407) 560-4300. They are open
from Monday - Saturday from 9.00am to 5.00pm EST.
(I always use Skype when making any calls to the USA to minimise the call charges.)
Wishing you a magical holiday filled with memories which will last a lifetime!