I can only go by my own successes... Shepherd Neame 1698 Available from Asda (didn't like the beer much and the result was okay) Thwaits Tavern Porter/Nutty Dark) Tavern Porter available from Morrisons (great yeast can't decide if it gave me red/bleary eyes) Wye Valley Butty Bach (also from Asda) loved this yeast didn't attenuate as much as some left a lovely sweet brew. Fullers 1845 (Morrisons) much nicer than the SN stuff and made a nicer beer too Buxton Brewery Rednik Stout (local garden centre!) is not working anywhere near as fast as those above slow and not really worth the wait now I have read about it (SA-05 as good apparently). I used it as it was handy. Great beer though so not all bad. The other thing that is worth adding is you can bottle a batch of your homebrew then reclaim from those in the same way. I got some WLP001 (as it was used for porter in how to brew) that has now done 4 brews for me. I think I might get some British Ale yeast as 001 attenuates too high and leaves a clean tasting brew but a bit under sweet for some of the beers I make. Oh dear I am getting very brew geeky nowadays.