Originally Posted by
brammers
Be really careful putting the D90 alongside the 40D/A700 colmo... While it's up there in a lot of ways due to the newer tech, it lacks in a lot of others. Lots of specs that initially look great don't really stand up to inspection - 4.5fps - for & 25Jpgs. An A700 will shoot at 5fps until you fill the card - hugely useful for sports.
In a similar vein, although a D300 might look to rank alongside A700/40D with only a couple of features ranking above, it's actually a fair bit better and justifies its higher price.