I've narrowed my camera choices down to either the SV45Ti or the SV45U with asymmetric movements. I'll be doing mainly landscapes, but also some closeup studio work. If anyone has experience with these cameras, can you give an opinion as to whether the asymmetric movements are worth it (about $700 extra)? In reality, will the asymmetric movements really enhance focusing that much that it will make a difference in both ease of use and in photo quality? Thanks to everyone for the help.