Is this just plinking ammo you're loading or are you loading for accuracy?
For lubing cases, considering the volume that most people load in for shooting out of an AR, lubing with a pad is impractical. I use Dillon spray on lube. Dump a couple hundred cases in a plastic bad, two squirts of lube, shake, another two squirts of lube, shake, done.
As for primers, I found that lots of guys that shoot for accuracy like the Remington 7 and 1/2 bench rest primers. What really shocked me is that you can find them for around $30 -$35 a thousand.
I reload for an AR too. The biggest down side to loading is case prep. There are some good pointers that have been posted above, but for case trimming, chamfering and deburring, look for something fast and easy. That Lee Zip Trim looks cool. Personally, I think I'm just going to have to bite the bullet and get a Giraud trimmer. Yes, expensive, but the thought of being able to process all of my cases for OAL in less that an hour or two just makes me really happy.