Supersize Your TV for $300: Build Your Own XGA Projector!
Tom's Hardware Guide, has a really cool do it yourself guide for anyone who's interested in an LCD XGA Projector but not willing to shell out $1000 to buy one.
For around $300, and 6-10 hours of your time, you should be able to have your very one low cost projector. Check it out, I'd like to hear from people who've actually built one successfully.