What are the hard drive requirements for infamous (ps3)?

I have had a 60gb ps3 for quite some time now and the hard drive is pretty full. I am trying to install infamous and it keeps saying i dont have enough free space. I have about 2 gigs free now and ill have to start deleting things i want to make more room.

Does anyone know how much space Infamous requires to install on the ps3?
Supplementary: Does anyone with a 60gig ps3 have the same issues with space size?