@samer, If you're interested in QT you should probably add a few more films to your list:
- True Romance (1993): Written by QT and directed by Tony Scott. One of the oldest scripts QT had written, he sold it to finance production of Reservoir Dogs (before major funding came from Harvey Keitel). A definite must watch.
- Natural Born Killer (1994): Written by QT and directed by Oliver Stone. Uber-controversial for glorifying serial killers, QT hated the final outcome and felt it had nothing to do with the original script.
- Four Rooms (1995): Four different segments, four different directors. QT takes care of the last one. Fuckin' amazing. Also, Tim Roth, the bellhop present in all four rooms, is a genius.
- From Dusk Till Dawn (1996): Probably the first real collaboration between Tarantino and Rodriguez. The movie is very cool. Avoid any kind of spoilers at any costs (including the DVD cover or IMDB page or anything), and you're in for a very WTF surprise. Bonus: Salma Hayek's sexiest movie dance ever. Probably.
- My best friend's birthday (1987): QT's first feature film, he worked on it for 4 years during his spare time. The movie almost vanished after a major fire in the lab. You won't find any DVD or edition of any kind, but a few years ago, I found some surviving scenes circulating over the P2P network. Definitely worth checking out, you'll understand where a lot of references in future movies come from.
If you want to be completely geeky about QT, he's directed a scene in Rodriguez's Sin City (earning a symbolic $1 for it), a couple of episodes of CSI and an ER episode. He's also produced (and participated) in various movies, of which I've only seen Killing Zoe (1993). Worth checking out, but definitely not a "Tarantino movie".