Sam I use Baker's flour and either fresh yeast when I can get it or Lowan yeast from the supermarket which is in a tall red cylinder. I keep that in the freezer and take what I need and replace it.
I love the 5 seed bread but it is a very sloppy mix. Chookie's Rustic Bread is also one of my favourites.
http://www.forumthermomix.com/index.php?topic=4234.0Try some of Isi's recipes too, they are wonderful. I think Judy always puts bread improver in with her mix too. (I do when I remember) You can buy that at the supermarket too.
Good luck and let us know how you go.