hey man, i live in a beautiful village on the outskirts of one of the world's great cities, where wonderful beer and buxom wenches abound :beer:
Dutchie, i think the UK boys can't get it but bet365 might be a good option. I had to put a small deposit in to sign up and they obviously hope to tempt you into becoming a regular gambler, but they have rights to a lot of sporting events and seem to show Championship matches regularly.
in fact I believe that the other streams basically nick it off bet365 - they are only ever available when bet365 is (legitimately) showing the match.
Alas, Griffin Park does not seem to have the required coverage, so Bees home matches don't seem to be covered. And it also doesn't seem to work on the same night as Champions League matches. I could speculate but honestly, i don't really know why...
anyway, bet365 is a good cheap easy legitimate option. you'll probably be able to find streaming sites for some games too, but they are all a bit more dodgy, virus-laden, full of adverts, prone to going down etc
good luck!