im definitely in the camp of betting much bigger on the turn. you don't define your hand very well and end up putting yourself in this tough spot on the river. the more you bet the turn, the easier it is to determine whether or not you are ahead. if your turn bet was like ~20 into a 26, its much more likely he checks behind this river w/ all hands but a flush and a K. which is why i would bet the river also .. were it the case that you better defined your hand on the turn. at this point i dont know wtf to do, he could have been peeling w/ a pr+gutshot and just hit. i got no idea and i dont think anyone else should have a very good one either.