Avenir grocery panniers work well for me. No locking hooks, but they fit a 12 pack, so, well, they pass.
http://cid-c5aa741102f41823.skydrive...iers%20001.jpg
Also some less important features, like reflective striping, key hook, zippered compartment, shoulder strap, and they fold flat.
Nice and rugged too. No rattling wire cages for me.