If you're looking to set up a semi-portable 720p high definition audio video projection system and DON'T care about 3D, you could start with a Draper Luma manual pull-down 15:9 aspect ratio front projection screen in either matte white or high contrast grey.

You could pair it up with one of the 1280x768 DLP video projectors featured in the slideshow to the left.

Of course, you'll also need to supply and connect one or more separate optional A/V source components such as a ROKU/HDTV tuner/DVR, Blu-ray Disc player/PS3, and/or other gaming console, as well as an audio system.

You may also need to leave room in your budget for some HDMI cables, a surge protector, and perhaps a portable projector stand.