I just found out this morning that I'll be making a last minute trip to NYC in a couple weeks. I'm PSYCHED to get up and get some pics and I thought it might be a good opportunity to visit B&H or Adorama and rent a lens since it'll be my first NYC trip with the D50. Any advice on lenses to get? I might spend the nite in Manhatten so there will most likely be the chance for nite / low light shots but I'll primarily use it for regular street / touristy shots. I was thinking of grabbing the 50mm prime f1.8 lens as I'm interested in buying this puppy at some point. I figured since I'm in a city I might not get much use out of a telephoto or macro so 50mm might be a good fit. I'm sure others have rented lenses like this before. Is there anything I should know? I can reserve it on their website but do I need a deposit? If I fall in love with it and decide to give it a home can I just pay for it and keep it instead of returning it when done? Any / all advice is welcome.