I've had good luck with the Painless ones... the gauge of wire is a little small but as long as you're not going to run anything too crazy off of it, it's fine. http://www.jegs.com/i/Painless+Perfo...70207/10002/-1
you get 3 "always on" and 4 "switched on."
I've got them running light relays, fridges, seat heaters, CB's, other random 12v outlets, multiple LED's, york clutch, more LED's, etc. If you get some big mega amp for the stereo, or a 1000 watt inverter or something, I'd probably run those direct to the battery, but these Painless ones are sweet for little accessories.