Conventional loan questions

[Matt Good]

I have a few newbie questions regarding conventional loans... Can you qualify for no money down? What's the best way to shop around for the lowest 30 year fixed interest rate? Can you use a conventional loan on a foreclosure provided that's it's not distressed?

I have a almost 800 credit score, a well paying full-time job of 4 1/2 years and almost no debt if that helps. Thanks!