I don't see the need for the seperate single outlet receptacle as both outlets on the other switched receptacle are controlled by the switch. One for the router, one for the shop vac. I don't see what having 2 buys you, unless you want to have the one more out of the way because the router is mounted in the table.
Mine is setup like that (1 receptacle controlled by a switch) ... no problems so far, but I don't use my router all the time or for long periods at a time.
Just make sure the switch is rated for the combined amps of the router and shop vac. They are usually 15a, so you should be fine. Use 14 gauge or thicker wire.
For a single combo switch, I do it like this:
Last edited by Chris Curl; 03-30-2012 at 08:54 AM.