I was talking to a friend recently, and somehow we started discussing our resting position on the key board.

For my left hand:
Pinky - Left Shift
Ring - Left Shift
Middle - S Key
Index - R Key
Thumb - Edge of the keyboard, below the Spacebar

For my right hand:
Pinky - Backspace/Enter
Ring - P Key
Middle - O Key
Index - J Key
Thumb - Spacebar

So go for it. Where do your fingers rest on the keyboard?