Power SWITCH source? Also: 10AWG vs 83803?

I'm thinking through a dedicated power line scheme, and have stumbled upon the Asylum threads re Belden 83803 12/3AWG for PCs, as well heard from the esteemed Crump re his preference for individual runs of cheap 10AWG for digital and analog dedicated lines.
My idea is to run one dedicated line to a dangling junction box comprising two duplex ACME outlets, one to be SWITCHED, so that PCs attached to that duplex can feed my basement mounted monos, and be controlled in the listening room. The remainng duplex would be unswitched, to feed the CDP and pre 24/7 close by the rack. The PCs would then be 6 footers, except maybe 18-20 ft for the left mono.
Would you guys use single or double lines? Belden 83803 or 10AWG? And should the PCs be simple DIY Belden-based 14AWG, or maybe that 12AWG tinned 83803? (especially if I have to buy 100 ft roll--I might as well use it throughout, eh?)
Anyway...any sources for a good switch (toe-operable, if possible!) to control the monos' duplex? Seems like a $2 Home Depot SPST is insufficient? Thanks. Ernie