Katie,
They will ask you to pay Right of Permanent Resident Fee for you and any dependents on the application. Of course you have the option of paying it pre-emptively (upfront) rather than wait for their request. Once done with the RPRF you will be waiting for passport request if your application is complete.
I had paid the RPRF upfront and am still waiting on passport request. Before end of the year, based on the April 2014 applicants' status updates, it was looking like it took them about 10 days after Medical updated to request RFPR or Passport but the things have slowed down now either due to holidays or Express Entry.