Hi,
You need a universal LNB, such as a Inverto Silvertech, with a 40mm neck, and a length of satellite coax (eg wf100) and a couple of f-connectors.
Receiver wise, you can spend what you wish, from £30 upwards. A TM5200(for example) for about £50 would do fine for the FTA channels.
Check out one of the site sponsors one of them will have what you need.
If you are in any doubt that you have selected something that will do the job, post back.
Robbo