Are you referrring to the 8lbs. projection unit? Maybe you should write down what the salesman reccommand and post it here then we might comment on it.
My wife and I were looking into getting a Sony LCD projection (either 42 or 50 inch) and the salesman claimed that we needed this that and the other thing to get it to look at its best.
What do we really need? Is professional calebration worth it/necessary? etc.