Hi Paulc,
Although not on the web check out my table in the next issue of GWW, basically its a routertop with all the disadvantages normally found in router tables taken out inc quick removal of the router, should be out in a couple of weeks
Benefits I've found are tons of bit storage space, large tool storage drawers, nice wide work surface in a table that has enough mass to remain stable while dealing with larger pieces. I'd be lost without it...
That said, the fence with it isn't the easiest thing in the world to set acccurately; lately I've been thinking about upgrading the fence along these lines....
Pat's site is well worth spending some time at. There's a wealth of information there; his books aren't too bad either, although they're geared around routers more commonly found in the US....