I have found digital projector under $500 so I decided I will buy it. I can made slideshows of my pictures and it looks like this one can be also used in home theatre setup.
The PLV-Z1 High Definition (964 x 544) resolution panels make it the perfect match for home theater viewing 16:9 widescreen DVD movies (480i, 480p) and HDTV (720p, 1080i) format programs. For High Definition sources, the 1/4 HD resolution panels provide better scaling and improved image quality.
With high quality projection system and 700 ANSI lumens you are assured that your home theater will have rich and lifelike images even at 200-inches diagonal. Featuring a D-Sub 15-pin input for connection to a computer, and horizontal/vertical Digital Keystone Correction.