Specs:
Image Quality
Resolution SVGA (800 x 600)
Brightness 1600 ANSI lumens
Contrast Ratio 2000:1
Uniformity --
No. of Colors 16.7 Million
Aspect Ratio(s) 4:3; Supports 16:9
Display Type DLP™; 0.55" SVGA DDR DMD DLP


Compatibility
Data Signals Native: SVGA 800x600 pixels Support: VGA, XGA, Macintosh®
Video Signals NTSC, PAL, SECAM, DVI HDTV: 1080i, 720p, and 480p
Video Resolution 500 lines NTSC/PAL
H Sync 31.5 – 80 kHz
V Sync 50 – 85 Hz
Dot Clock 20 to 95 MHz


Connectivity
Inputs Composite Video, RCA x 1

S-Video (Mini DIN 4-pin (Y/C)) x 1

M1-DA (Supports VGA, DVI and USB) x 1

Analog Audio (RCA x 2) x 1


Outputs VGA (Analog data, mini D-Sub 15-pin) x 1

Stereo Mini-Jack (3.5 mm) x 1


Built-in Audio 2.5-Watt mono


Projection Lens
Lens 1.2:1 Zoom lens with manual focus and manual zoom adjust
Image Size 2.7 to greater than 21.6 feet diagonal
Throw Distance 4.9 to 32.2 feet in distance
Throw Ratio 1.9 to 2.7
Keystone Corr. +/- 20° vertical correction
Lens Shift --
Proj. Methods Front, ceiling, rear


General
Dimensions 9.8" x 4.2" x 12.9" (W x H x D)
Unit Weight 6.8 lbs.

Estimated lens life: 3000hrs.
Estimated replacement bulb cost: $299 usd

Its DLP (which is good) but it only has a resolution of 800x600. That is lower than an HD ready TV. It looks like more of a meeting room projector than a home theater one.

 

this would be worth buying from your sister for the right price. It specs look similar to the infocus x1 which I have seen and it will do amazing picture quality on a 75"x75" screen or so.
think about the uses of the projector versus big screen tv. You can grab it - take it to your buds to watch a football game/whatever. It sets up in minutes.

 

the call center i used to work at used proximas in their training rooms, they were sweet.