I need your help, my lovely IF gurus.

I had my baseline ultrasound today, and it's official, this will be my first cycle with injectibles. I was told to call around to different pharmacies to find the best price, and I can choose from follistim, gonal-f, fertinex, repronex, or humegon - whatever costs least. I don't even know where to begin in my search for these drugs. Help!