Should I Rent a Lens?

Hi All,

I will be traveling soon and I wanted your advise on something, should I rent a good lens for my trip? A little about myself, I am pretty much a beginner and I like to take street photography; I currently have a Panasonic GF2 with the 14mm f/2.5 lens. I will be traveling to Mexico soon and I would like to take some really nice pictures while I am there. I am considering renting a Panasonic Leica 25mm f/1.4 lens for my GF2 through, what do you think? Do you recommend anything else or different?