I traded my '05 King cab SE 4x2 swb for an '08 Crew cab lwb 4x4. As much as I loved my '05 I've never had second thoughts or remorse about trading for the '08. I like the '08 just as much as I did the '05 but my wife and 3 year old son like the '08 WAY better. A lot more room and a quieter cab really sold it for them. The longer bed and 4 wheel drive helped too.
I traded my 05 CC for an 08 CC 4x4 LE. I loved my 05 but the 08 is much more refined. As mentioned it is much quieter, rides smoother, larger brake discs - seems to stop easier and just an overall feel that the truck is tighter and built better than my 05.:cheers: