The only thing I’ve seen from him is Dusk till Dawn, but only because Quentin Tarantino wrote it and acted in it and Faculty which was not that good. I’ve heard Desperado and El Macheles (sp?). Are they any good.
The first half of Desperado (QT also appears in this film with a kickass cameo) is brilliant, the second half not so good but still good to watch.
You might also want to check out Once Upon A Time In Mexico (cleverly titled by QT), but Johnny Depp steals the show.
Heck, just watch the whole Mariachi trilogy (Rodriguez’ Dollars Trilogy), I haven’t seen El Mariachi so I can’t give an opinion on