Gotcha! Thanks knightmb and thufir for the info. I was mostly curious because of the exact situation knightmb mentioned - one can only forward a port at the router level to a single NAT'd host, so I wanted to see the best way to use all of my PCs and still manage to accumulate funds under a single "account". Based on thufir's confirmation, it looks like the best way to do so will be to routinely transfer funds from my "workhorse" PCs to my central PC that will house my "primary wallet," for lack of a better description.

Thanks again!