I'm sure you've all read about the old "magnify any TV to 100"!" ads, and things like that.
*oops.. hotlinked image..they must have pulled the plug*
Use an old LCD, and an overhead projector together!
This is actually a feasible and affordable project. I have a scrap LCD here, and an old projector.. I might have to try this out!
Compared to a new LCD projector, this has pros and cons.
Pros:
WAY Cheaper
DIY Factor makes it a cool idea, and allow serious customization
relatively easy!
Cons:
BIG.. bulky setup
Have to build it (not necessarily bad...)
Improper cooling will toast your LCD
Can be finicky to tweak