Hello - Ive been given the honor of photographing my grandmothers wedding in May. I have a canon rebel XS and can normally take good pictures but i am uncertain about taking them inside of the church. I have the 18-55 MM IS lens, fstop min is 3.5. I am unsure if this lens will be suitable for the shots i want. I know i can use ISO 1600 and i do have a decent noise reduction program but i would rather not go that route. I will have an external flash for one or two portraits but i am not using any flash for the rest of the wedding. So my question is...what are my options? Also, what are some good places to get some good pictures from. I plan on getting some from the center aisle, both side aisles, and if available the second floor in the back of the church of the whole church. What are some other good places for the wedding? I will take pictures of everybody later on in the after party. I hope this turns out well, everyone in my family is relying on me to take great pictures. They think i can take great pictures so i do not want to let them down! Thank you for all the help and tips you can give me!