Does anyone have any ideas on Protein powder? I have a consistancy issue and I cannot do anything that is thick. Looking for places that have sample size powders to try before I buy big jugs. Also, looking for something that is tasty and not chalky or clumpy. I have been to GNC, Vitamin Shoppe, Nutrician Solutions & Target here in Greenville. Surgery scheduled for 6/4/12. Thanks!!