I picked up a neat poncho in Bayonne, France for about 30 Euros at a large sporting good store. It was a front zip-up type that covered both hiker and pack - seemed like a better design than a pull-over.
It proved its worth during the few times I had to use it. It wasn't hard to put on, even when windy (once I got the hang of it). Also, I liked being able to unzip while walking to get some airflow. And when I unzipped all the way while closing it around my neck with the velcro strip and removing my arms from the sleeves, it felt like I was wearing an old pilgrim cloak ;-) I even wore it around during rainy evenings when bumming around town (including after reaching Santiago).
I did have an issue with the hood seam, though. To be fair, the only one in my size was a display model, so I suppose it had been pawed over and tried on by many folks. But there were a couple of tiny tears in the seam that I had to repair with duct tape. Even so, I really liked that poncho. There was a whole rack of them at the store, so I think it must've been a common brand - at least in France.