I agree with Brendan, it is better, although your current (amphere) values are out a bit.
As long as your power supply is capable of supplying more current than you draw AND you cables are large enough to keep voltage drop to a minimum, then you are on a winner.
Not sure why the LED's are there either.
Edit: One thing I would alter is having the switches in circuit before the load. Then when the switch is off, no power is at the load side.
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