Hopefully crossroads will clarify things, but i seems to me that the i/o>gate resistors were probably from using pnp transistors, and if you are using logic level mosfets, you probably dont want a resistor there, but I think the gate>source resistor is to help it shut off, so it can switch faster. but Im a bit confused about many things transistor...
Check your calculations on your led resistors, I bet you are set for 30ma, not 20.