If anyone is in the need for a portable air compressor for airing up, I was just at Costco today (the sarcee one) and they have the Bonaire DD25 there for $39.99. Here is a link to their website
http://www.bon-aireindustries.com/products/detail.cfm?prodID=47I thought it would be a pile'o'junk for $39.99, but it's actually pretty decent. It feels solid, comes with all of the hoses/hook-ups you need, comes with a bag, and it's a 12V that hooks up directly to the battery. I just tried it out and aired up my 33" duratracs from 12 psi to 40 psi and it took just under 4 min. I tried the same thing with an ARB compressor a little while ago and it took 3:30.
Sure, there are faster/better ones out there, but for 40 bucks including all of the fixin's, it's a good deal.