House (1986) - Always have a blast watching this one. The balance between the horror and the comedy is perfect. Some obviously fake looking monsters, but that's part of the fun. Great cast.
Monkey Shines (1988) - Romero's first studio film. Huge round of applause for whoever trained that monkey. Not your average horror movie, thats for sure. Pretty unique, wish Romero would try something like it again.
American Nightmare (2002) - Indie slasher, while cliched at some points, it gets everything right most of the time. Debbie Rochon rocks my world.