I'm thinking of creating a proper home network and using a single machine dedicated to access control, centralised authentication, DHCP and acting as a proxy for internet access via a separate home router. Currently all my machines connect to the router direct via power line networking.
Would there be performance issues associated with putting a proxy such as this in between my home computers and the router or would they be negligible (as in just one more hop)?
Also if there's any massive caveats that I should be aware of let me know.