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.
My deck was alright. A lot of my good cards were stolen because I played at school, and at school, people had a tendency to unzip your backpack.
After that, I lost several Ball Lightnings and Yavimaya Ants. I'm down to commons now. But then again, I don't play anymore. My roommates will a little, but they would go to the comic store and buy individual cards. Considering all the cards I had were found in decks or traded for, I'm a bit outclassed.