Power needs. (no replies)

Just purchased my first kit for my first 3D printer. It has a Sanguinololu 1.3a. It is an Eventorbot and has the board built.
My question is if I need to change the incoming amps when running the 12v+ from an atx Power supply.
The designer of this printer said that I need 5 amps without the heated bed and 10 with. My PS puts out 19 amps.
Will it hurt anything to just run straight into the board, or do I need to put a resistor in between?
If so, what resistance (what math formula) should I use to determine it?
Again, IF I need to change the incoming power, the amps, what is the max safe that this board will take without causing any shorts or burn outs?

Thanks