Adding 12v outlets in center console

I want to add a 12v and USB charging station (preferably on of these: http://www.magnadyne.com/catalog/part.cfm?PID=719254&CID=25859) to my center console of my 2012 Tacoma DCLB.
I think that I have a wire route figured out from the fuse block by the driver's left knee that will work for now. I was planning on powering this from a Add-A-Circuit in the fuse block. This is a temporary installation for a 10 day driving trip later this month. I need something to keep my boys' (8 & 11 years old) electronics running for the trip. I intent to install a secondary fuse block later, once I have figured out what I am going to do to the truck.

My question is: what fuse should I use the AAC on? I want a circuit that it switched, and that can handle the power draw of the handheld electronics (ipod, ipad, Nintendo DS.)

I have about a week to do this. The charging station is on order, and expected the middle of next week, and the AAC and wire are sitting on my bench.

Thanks.