Hi! I have an old Black & Decker air compressor that's served faithfully but may need a replacement soon. Here's my (few) thoughts so far: 1. I'd like to buy something that has a VERY accurate built-in gauge so I don't have to do the fill-check-fill-check-fill-check thing as much... that's the ideal right there. 2. I could almost say I don't care whether it runs off 12VDC or 120VAC since I'll use it at home, but of course I'll grant that 12VDC makes it portable and thus slightly preferable. So long as it doesn't blow the Model S's 15A fuse when running off the car's power, of course. 3. The ability to use adapters to inflate bicycle tires and basketballs is a very nice plus. Any suggestions?