Speaking in general terms how do you feel about how bookshelf fronts with a decent sub stack up against a decent set of 2-way, or 3-way floor standing models (lets say over 36" in height)? Are the large floor stand models generally meant to provide a full breath of highs and lows without the need for a sub, unless you really want to punch out the ultimate low ends in theater applications? I ask since in evaluating several affordable bookshelf systems (which by themselves lack the lower sound quality, but perform decent with a good sub), I have questioned whether the money spent on additional speaker stands would be better spent on some entry level floor standing models. This might offer the opportunity to forego the additional sub, at least in the short-term. I also have a concern regarding the stability of bookshelves on tall speaker stands with a 15 month old beginning to roam around the family room, where the speakers will be eventually positioned.