I know it's been suggested already, but I'd like to offer my 2 cents on Mabinogi. It's a prettier modern day Runescape/Harvest Moon, but if you like complexity you might want to check it out. Personally I hate complexity, so the whole aging system (my character in a MMORPG will AGE?! Become an old woman?!
DO NOT WANT ;-
in Mabinogi is a big turn off for me. But maybe you'll like it?