The best replacement for d80 is d200.

The best alternatives to d80 are rated as following:
★★★★★  d200
★★★  d90
★★★  d60
★★  d300
★★  d40
★  canon xti
★  30d
★  40d
★  canon 30d
★  d70
★  nikon d200
★  d3100
★  xsi
★  d5100
★  d3000
★  400d
★  canon 40d
  d7100
  450d
  d5000
  xti
  d50
  d40x
  d700
  canon rebel xti
  canon 400d
  nikon d90
  d100 creative
  rebel xsi
  20d
  rebel xti
  eos 450d
  nikon d60
  a100

Your alternative for d80 is not listed? Suggest!
Speaking about d80, one probably shouldn't forget about sb600.

Other search terms related to d80 and their ratings are:
★★★★★ sb600
★★★ sb800
★ sb 600
You have in mind a companion for d80 and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of d80 in all years. Click on graph for more.
d80
d200
d90