Given the Accord's automatic, I wouldn't be banging off-redline shifts all the time for the sake of the transmissions longevity. Manual transmission is no problem, the clutch in the Accord can easily handle the stock 150HP consistantly.

Redlining the car isn't bad.....manufacturers put the redline way before it's actually in the danger zone for the sake of reliability and longevity. Lots of tiimes it's just a recommended shift point as well, and the fuel cutoff isn't until a few hundred revs later.

It will, obviously, put a bit more wear on the car, but if you keep the oil fresh, nothing major will wear any faster than usual.