Of the posts above I'd say micbar's pricelist is more accurate in terms of street prices. If you're going to try the pure ess thing, consider getting the ess pouches available through the abyss. They require certain runecrafting levels - more info in the Runecrafting Guide. If all else fails, take up merchanting. A quick breakdown on the member-only skills, based on my personal opinions: Fletching, Farming, Herblore: Profitable, if your sanity holds. Generally pretty love/hate; either you like it a lot or you would rather stick your tongue in a light socket. Agility, Construction, Hunter: Utility, mostly. Little things that make life easier. Construction is a huge money-sink, though. Slayer, Thieving: Potentially highly profitable, though rather luck based, and getting to the higher levels can be tedious. I'd tell you which I think are fun, but that's totally subjective. 8-)