Yeah, I've done a quick sketch of my interpretation of your room layout, and while things may in turn be less than ideal, it doesn't mean that they would be bad or not worth trying. I am sure that JC isn't trying to steer you wrong at all, we just have more sets of eyes to look at things from different perspectives.
On a related note, since you are new around here, it should give you a good feeling to know that you are working with a company that isn't trying to just sell, sell, sell. They want to work with you and your needs/situation and not just over-sell you. That is what WE are for.
Like someone else said, people on the forums like to spend other people's money. I started out looking at M22 fronts, VP100 center, and QS4 surrounds. Ended up with M60 fronts, VP150 center, and QS8 surrounds... All have been crammed into a small and VERY irregularly shaped 10'x15' space. Many things are possible.
Oh, and welcome by the way...
