My pride and joy deck, was Green/Red. It had direct damage and creatures that were unaffected by summoning sickness. Had to mix in a few Deadly Insects, but it worked out alright.
One of the best burn decks I've seen was all fixed damage spells and some raging goblins (1/1 haste). Normally, I don't care about goblins unless there's alot of them, but too many times, just one goblin hitting me in that deck made difference between winning and losing.