Ok, I have to thank DougH for the original idea. He has a twenty pounder if memory serves me correctly.....Ha! That hasn't served me very well lately though. <img src="/forums/images/graemlins/rolleyes.gif" alt="" />

I used Doug's while down in the Pine Barrens years ago, and really liked the fact that it took only seconds to air up.

Mine is a five pounder -for space saving- and secured via a fire extinguisher mount: the kind used on trucks.
The regulator is for beer/soda gas as I mentioned. It cost me about $45.00. Then all you need is a chuck for the end of the hose and thats it. I have a trigger 'blowing" chuck for just spraying dust/debris/crap off of stuff. I even use it to clean the dust out of my computer....carefully, of course.
Swapping cylinders just requires unscrewing the regulator and attaching the new cylinder, using teflon tape.

There are a few other (old) pictures of it on my photo site under "Mods."

But there really isn't anything to it. I'm sure a lot of other guys here have equal or better set-ups than mine.

-Ray: I never had a problem with the cheap line freezing up or cracking. But I'll look into the stronger air lines.