Bike hand pump -not enough pressure

I recently went to performance bike to get a bike pump for my mountain bike and I learned something interesting.  The portable hand pumps have the internal works to be able to provide high pressure, but it can be difficult to get the tire to those pressures with the short compact pumps which require you to push the pump plunger directly at the tire while the other end is connected to the valve.
So it seems there are really two simple options. A larger  floor style pump(which you can drive you pressure into the ground with more force to get a higher air pressure in the tube) or co2.  After looking a bit more though I found an little more bulky hand pump with an airline off of it which allowed you to connect the line to the valve and then pump the body against the ground in order to get enough pressure.  This option works pretty good and will make sure I don't run out of CO2 and can still get a high enough pressure on the road.