For every elite you kill your magic find and gold find go up 1% to 10% depending on what monster power your playing at. It can go beyond the current cap. Once a legendary drops your magic find and gold find will return to whatever your base level of magic and gold find is according to your paragon level and gear.
I think a system like this would make the game more rewarding for those that play allot and cut down on going weeks without finding anything other than gladiator gauntlets after playing for 6 hours a day on mp9 with max mf.
I already know the Auction house flippers who own the markets and have billions of golds are going to hate this but what do the players that actually play the game think about this?