Thats just one good thing about newer models.
a) they have better sensors
b) you can shoot RAW and set the whitebalance at home on your computer
Just a thought that makes an "unneeded" upgrade "needed" :-)
Nikon D70s, Sigma 8 mm, 4 to 12 shots, Agnos MrotatorTShort, PTGui, PS CS3, and lots of other software :-)