Next step, window treatments

I finally finished the wallpaper in the dining room, but now am stuck for curtain ideas. The window seat will be recovered with a coordinating fabric in the very near future.
It's a South-facing window, so I probably need some way to block sunlight in the afternoons, but in general I prefer to let the light stream in as much as possible. I am not a fan of miniblinds (is anyone actually fond of them, I wonder), but they do seem to be the most readily available these days. I love the look of the bamboo matchstick blinds, but in my experience they still let a lot of eye-blinding light through on super-sunny winter afternoons. I'm toying with the idea of a valance and cafe curtains, but maybe full-length sheers might be nice too. Too many options, and I'm horribly picky. If you are reading this and have an idea, please let me hear it!