|Thanks for the clarification.|
I have a linksys wrvs4400N router which supports vpn clients and has gig ethernet. A client authenciates to the router then rdp's to the server.
Your setup would be the same with the addition of a access point [turn you wireless router into just a AP switch].
modem<>vpn router<> server/network
crossover cable from vpn router to wireless home router. Home router is assigned a static ip and its dhcp server is disabled. Cable from vpn router to wireless router goes lan port to lan port never lan to wan.
'tis the season to be of good cheer. Wishing one and all happy times with family and friends.