Hi Stu,
First of all have a look at
www.knplogic.co.uk , and
www.satfootball.com,
to find out which sats have the most f.t.a. footy on.
Cheapest option would probably be;
f.t.a. digital sat receiver + 80cm( or zone two minidish would probably do it) dish pointed at 16 degrees east, for Top channel, which has premiership matches at the w/ends.
A lot depends on location and which satellite you want to view, as to what dish size you need.