Personally I use http://www.football4less.com/
(its free) , you just need to sign up to the forums to see the live games links. Obviously most of the software they use is for windows, but there is a sopcast client available for linux. Then you can use any linux media player that supports streaming mplayer/vlc etc.
On the whole it works very well.
I've read that tvants will work via wine, personally I haven't had any success with that tho.