No, projectors are not difficult to use. Just plug them in, hook up the audio/video cables to you cable box or computer, and press the power button on the projector to start it up.
You can purchase an hdtv lcd projector at any electronics specialty store including Radio Shack. Another place to take a look would be at Walmart or online at Amazon.
Prices for lcd hdtv projectors will vary based on the resolution size. A 1280 x 800 lcd hdtv projector from Hitachi will run about $2000. An Epson 960x540 LCD Projector costs $700.
You can find information for this is many different places. If there was a specific brand you were looking at, you can look at the manufacturer's website to read all about the product. You could also...
First, let's give you a little information on the differences between the display quality, and the projector engine.
A LCD projector is the projector engine.
HDTV is the quality that the projector...
It depends upon your taste in lcd hdtv projectors. If you want a high tech one i would look at brands such as Epson. You can find this brand at local best buy stores.