Couple of things to note here.
-You are using i7-2600 (not K) version which has HD2000 NOT HD3000, so it WILL NOT be supported on OSX Lion or Snow Leopard. If you managed to get the graphic going, it will be stuck at 1 resolution with no QE/CI
-"Still waiting for root device" if you google it, there will be various explanations and conditions causing this to show up
-With the CPU you are using i7-2600, you will definitely need a dedicated [compatible/supported] graphic card.