I think my mind was just made up about 15mins ago......I saw a 550 Maranello with an SL55 parked behind it. Since its already 5:30pm light was pretty low so I had to set the ISO to 200 to get a reasonable shutter speed (1/20 with IS is acceptable) but the pics are noisy as hell.
As has been mentioned with an SLR I can use higer ISO settings and still get acceptable results.....