The Optoma 7100 mentioned above can do up to 117" diagonal at 11'. The VA sale CowboyCurtis mentions makes it REALLY hard to pass up. I am still debating this one and will need to make up my mind in the next day or so.
If you read the thread rking401 references (you should) you will see that he has had really abysmal luck with this projector. He has my sympathy for that ordeal. You will also see however, that there are some users that have reported no issues. Consider the old adage that you will hear from those having issues 10-1 over those who have none. That statement in no way, shape or form is meant to detract from the frustration felt by those in rking401's position.
It is an option to consider anyway. Great image at an unbelievable price, as long at it works.