mfunnell
Shaken, so blurred
You are quite right - its the older Canons that have the slow start-up times. However, if my recollection isn't (again) playing me false, other aspects of operation (especially write times in RAW and time to fill then clear the image buffer) are slower than slightly more modern cameras (even only as slightly more modern as the D70). In particular, I recall the D100 takes only 4 or 5 shots (RAW) to fill the buffer then you end up with a 6-or-so second wait for the buffer to flush before you can shoot again (this is probably better if shooting JPEGs) whereas the D70 flushes the buffer faster and allows you to shoot again more quickly as you can add a new shot to a partially flushed buffer (where the D100 seemed to have to clear the full buffer before it allowed you to shoot again).Just a minor point: I still use a D100 today, and the start-up time is instantaneous.
I haven't spent a lot of time using Nikon dSLRs - but I have a fairly strong (and, I hope, not completely false) recollection that the D70 felt a lot faster to use than the D100. Note, though, that I still have (and use as a 2nd body) a Canon 300D which is a good deal slower than all of the above - yet still a good and usable camera. So this is all, probably, just arguing around the margins.
None of which is a criticism as such - they were all pretty amazing cameras for their time - which seems ages ago but really wasn't.
...Mke