Several have alluded to this yahoo group. It really is a good thing to review, even after you make the purchase. Like anything with this complexity, there are pros, cons and 'bugaboos' that need sorting out. You can really benefit from others' observations good and bad.

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Thanks everyone. I have joined the yahoo group but have not had time to visit the site yet. Maybe in a day or two, I will have time.

Well, I took the plunge and purchased a Horizon 7700. My son's mother in law and I both purchased one. They are floor models. My ds and ddil brought mine to me last night. But I have been too busy to even open the box. It will probably be next week before I get a chance to play. I have visited the yahoo group a few times and there is a lot of information there. Thanks everyone for your input.