Air Compressors: CFM, Tank Size, PSI

[myxomatosii]

So, I've been looking into various air compressors. What I'm looking for is something that can fit in the back of an access cab truck but still have some power to it. I would like to be able to casually fill up tires after a day of off roading, or to power an air ratchet for casual work nothing professional, or actually even one idea is to power a train horn with it which run about 70 to 90 psi I believe. Anyway, who else knows about air compressors? I don't want to spend a ton of money, 100 to 150 is ideal. After looking over all of the options on Amazon this seems to be the one I have settled on for now, what do you guys know about it?

Safe to say I won't actually buy the compressor for a few months, just shopping around.

:D

http://www.amazon.com/dp/B004285RLS/ref=wl_it_dp_o_pC_nS_ttl?_encoding=UTF8&colid=1FR5S9QHNJEQR&coliid=I1HJVGCMAVXJM5#productDetails

I like the CFM on that one, and that the PSI max will allow it to at least give me a few hits with any sort of casual impact use.

[BigHurb]

try BTFP02028 - 26-Gallon, 150 Max PSI, Oil-Free, Vertical Compressor

41% off so wish list it, only 100$ more

http://www.amazon.com/Bostitch-BTFP02028-26-Gallon-Oil-Free-Compressor/dp/B00HXD2U6Y

[myxomatosii]

O I forgot to mention, I wanted a small form factor so it didn't take up the whole back of the access cab. I checked that one out, my main fear would be that it would fall over. Do they function properly lying on their side with the oil etc?

I know the one you linked is oil free, but still curious.

[BigHurb]

the reviews on amazon are the best place to mine for data about your purchase i think, always read the bad reviews!