What Lands Should I Use?

I would set the land as something like:

2 Battlefield Forge
3 Caves of Koilos
3 Temple of Triumph
3 Temple of Silence
2 Temple of Malice
3 Bloodstained Mire
3 Mountain
2 Swamp
3 Plains

That gives you 8 untapped sources of each color and 5 or 6 tapped sources for each color.  The 8 scry lands should help even out your mana and set you up for whatever you need to play on turn three.