In a bit of an upset, iG first lost to LGD 2-0 in the semi-finals (video of crowd reaction after LGD won), and then lost 2-1 to Orange in the 3/4th match.
LGD on the other hand defeats DK 2-0 in the Grand Finals to take home the 180000 RMB ( 28000 USD) prize. Some candid photos of the live venue and emotions from LGD vs DK here.
DK takes home 60000 RMB (9500 USD), Orange gets 50000 RMB (8000 USD), and iG gets 40000 RMD (6000 USD).
Vods of the full tournament are available at the 17173 official G-1 page: http://dota2.17173.com/zt/2012/zt02/index.shtml
Vods of just the LAN finals, on Youtube instead of Chinese providers: http://www.reddit.com/r/DotA2/comments/13f2el/g1_league_lan_finals_spoilerfree_vods/