I would suggest you that instead of going with Nikon D60 go with a better one Nikon D7000 which nikon released this year, it performs much better and produced excellent result.It has 100% view finder! Big bright with 100% coverage.This camera is Smaller and lighter than D300, D700, D3s, D3x. 1/8000th - Very useful for shooting into the sun wide open with a bright lens. And this camera has Excellent battery life, the D7000 can shoot 6 shots per second.
The question is between the Canon 60D and the Nikon D7000.