I dont like the branded stuff,
i get all my whey protein from all in one or the whey consortium, its unflavoured (so just add crusha or nesquick etc if you dont like the taste)
its dirt cheap and ideal for them morning shakes with oats and banana etc
Check out
www.muscletalk.co.uk and click on the links, youll save a fortune oh and if on the all in one site type in muscletalk at the checkout and get even more discount, works out at £23 for 5kg delivered to the door within two days usually

by the whey(see that eh) its 80% protein.
Ste