Well, I'm once again starting to do some research regarding an upcoming purchase. Some time in the next six moths, I will be buying another lens to supplement my 90mm SA XL. My subject matter of choice is architecture and interiors, and I'd like to hear from people with experience in the area. So what's the next logical step? Do I go wider or longer? If I go wider, I was thinking the 72mm SA XL (I want to stick with Schneider glass for consistency). If longer, maybe the SS XL 110mm(?) At this point I'm building up the arsenal of equipment I'll be using professionally after college (in a mere 2 years.....eek), so I want to make sure I make an appropriate choice. Thanks for any thoughts.