I like the front bumper, headlights, and grill of the 2006, but I like the rear bumper and fenders of my 2005 better. I like chrome on a truck too, but the chrome on the handles of the 06 SR5's are a bit much for me. I prefer the monochromatic look. The chrome handles are just distracting and detracts from the clean look imho. I remember a post somewhere when the first pictures of the 2006 trickled in that the rounded fenders gave it a softer more Durango-like look.
If I can do it all over again though, I'd get the 2006 Sport Edition in Galactic or Smoke. I like the old roof rack though rather than the new tubes. I'd prefer beefier tube steps too. I still like the 2006 styling though. New is good. I'm hoping I can get an SE in about 3 or 4 years. I'd still keep my '05 SR5 (my wife likes it) and just replace my 15 year-old Acura (which still runs great). Here's to the 2009 T4R!