I've been searching around the web for a good list of all the main quest rewards in diablo 3, and have been unable to find one so far; everything has been objective lists or pay for guides or incomplete/outdated wiki entries. Does anyone know of a good list?
You can find a comprehensive list of quests including rewards (gold and xp) here (sorted by the acts). Hover the quest title to see the rewards per difficulty.
There are no real 'rewards' from the quests, it's just gold and experience each time. The gold and experience scales down with level to a point dictated by whether the content is 'current' for you or not, and is replaced with a pure gold bonus once you are ineligible to get experience (ie: are level 60).
The official strategy guide has all the quest rewards listed, but from testing in-game I've found it does indeed scale with your level, both for being over and under the target level, so there's no hard numbers on how much you'll get. Also I'm not sure if anyone has posted a list of all of them together or not, but your best bet would be to check a guide.