The problem I have with those is there is no phone keystone. I know I can use the cat5 key but I have visions of a client plugging his $2000 portable PC into a phone jack and blowing his network card.

The Keystone format does have phone jacks.  You need to search for USOC Keystone Jacks.  There are several different manufacturers that make these.  I used to work for the phone company years ago and the USOC terminology goes back to Ma Bell.  I don't remember exactly what it stands for but if you search for that term you will see tons of Cat 3 or USOC telecom 6-pin phone jack plugins for Keystone format.

I hope this helps.