myprotein.Co.uk have a wide range of protein powders.I tend to go with unflavoured whey protein, then you can get creative with your own flavours.Hope this helps
Amplified wheybolic extreme 60 from GNC is the best protein shake I've tried so far. I lost 10 pounds in 1 week and only worked out intensely twice a week. You drink it with water or milk (w/ milk it can be used as a meal substitute) 12 oz. On workout days you drink 1/2 pre-post workout, and non workout days you drink one full one in the morning.