v=ir. This is exactly what Ohms law is. Nothing more, nothing less. Voltage equals current times resistance. It's a simple math equation that will answer everything. But to answer simply, a resistor IS a load. A light bulb is a resistor that just happens to do something aside from generate heat. A computer is exactly the same thing. A big, fat, complex resistor. To the source of the current/voltage, a resistance is a resistance is a resistance.
Next step: if you take 2 resistors and run them in parallel
. . . /---R1---\
---< . . . . . . .>-----
. . . \---R2---/
The current is looking for the easiest way to get through the circuit. Much like a river seperating into 2 smaller rivers, the majority of the water will flow through the path of least resistance. In this case, yes, the higher resistance will have less current going through it. This is because it resists the current more than the resistor with a lower resistance.
Want to know how to get zero current? Look at v=ir -> i=v/r. Decrease the voltage to zero or add an infinite resistance. This basically means remove the battery (0 voltage) or disconnect the wires altogether (infinite resistance -- no path to take).
Ever take a battery and connect it with a wire? It gets really hot really quick. That's because the current draw is pretty much maximum. hold just a battery in your hand and the resistance is infinite. The battery will last you quite a while just sitting in your hand.
Now what was I saying? Oh yeah, to decrease the current draw on a battery, increase the resistance. But if you are messing with expensive and/or dangerous stuff, first you should do a few practice problems using Kirchoffs current law and Kirchoffs voltage law. You will understand everything a lot better with that. Simply sticking a resistor between your battery and your light bulb will only make the light bulb less bright.
What exactly are you trying to figure this out for anyways?
EDIT: Thought of another way to say it a lot easier. YES, adding a resistor (in series) to your circuit will decrease the current draw, but it also will decrease the voltage (which makes the light bulb dimmer as written above). In order to obtain the same voltages that you want, you will now have to increase the voltage, which will increase the current more. If the resistor you added still leaves you within the constraints you need, then perhaps you should look at a battery that has the lower voltage. Then you don't need to worry about the resistor at all.