I am in need of a router/router table and would rather build my own as I can
build to suit the needs/style of my workshop.

The area where I am lacking knowledge here is what router to buy.

My existing router although very good would be totally unsuitable as there
is no way to control the power. It has a trigger on the handle and without
getting into the electrics could not be easily adapted for a table. Could
someone recommend a router or two that are suited for a table, where it
either comes with (or can easily be adapted) with a on/off switch system
that I can mount on the front of the table.

Would also be interested in any tips for how to mounth the router, so that
whilst it remains steady and secure is easy to change the bits, depths,
etc.,

Thanks

Sean