If you think D90 is cooler than D80, you should know that using the same image setting...D7000 maybe even cooler!But that's just software processing suppose... Oh yeah, I'm a happy D90 user alright.
Actually D80 (like the D200, D60, D40x, D3000) uses a CCD sensor instead of a CMOS sensor. Even though it is noiser than the newer CMOS sensors, the colors are just excellent compared to the newer CMOS sensors.