well Im not going to keep upgrading my camera every few years, but invest in new lens' I have a 20D and a 1DMK II N and I havent found a need to upgrade past an 8MP sensor. Now if I were to ask for what features I want in the 60D it would be features to compete with the D300...
- 10 or 12 MP sensor (a decrease OH NO!)
- HD Video (with audio external audio attachments)
- 8 FPS (D300 does it, and I know with the Digic IV processor or Digic V processor should be able to handle that)
- Deep Buffer
- ISO 50-25600
- Weather Sealing
Now, the reason I insist on a lower MP camera is because I think 15 is too high for the sensor size, noise is becomeing more intrusive at lower ISO's and higher ISO's are looking worse and loosing detail. Now if they made a 10 or 12 MP sensor using up to date technology they have invested in there higher ISO cropped sensors imagine the Image Quality, I'd rather have a higher quality lower mega pixel image than a crappier image at Higher Resolution. Thats just me, I dont want DSLR's turning into the Point and Shoot Market.