Found this on Allears:
Strollers may be rented in each of the theme parks or at Downtown Disney.
Disney has a Length of Stay rental for strollers and wheelchairs. With the Length of Stay rental, you make a one-time payment for as many days of rental that you will need. Upon visiting a theme park, show your receipt at the stroller/wheelchair rental location and you will be directed through the queue with little or no wait. There is a slight discount when purchasing the Length of Stay rental ticket. The Length of Stay option is NOT offered during peak attendance times, however, such as Christmas.
Disney Stroller rentals cost : It will cost you $15.00 per day to rent a “single” stroller and $31.00 per day to rent a “double” stroller. If you’re going to need a stroller for more than one day you can rent them at the “multi-day” rate of $13.00 per day for a “single” and $27.00 per day for a “double”.
As for the photopass- I think you can preorder it for $99. It should be listed on a confirmation email that tells you about online check in and other info.