I'm just going to add that at 14', you really want to be at the largest possible display possible. A 64" Samsung or 65" Panasonic is not at all unreasonable. For front projection, you would be at about a 133" diagonal for optimal immersion.
In our new home, I'm thinking about the 90" Sharp for viewing from 12'-14' typically.
There is almost no such thing as to big, but at 14', going under 60" is starting to push to small rather quickly.
Not sure what it takes, but if you have room to stretch the budget some, I would strongly encourage you to buy the largest freakin' TV you possibly can. Your distance truly asks for it.