I have ridden a few bikes, and prefer a slightly bigger frame that what the calculators work out for me (as long as both of my feet touch the ground when I'm stopped at a traffic light, I'm happy) .... I'm much more comfortable on these larger frames even though the seatpost is a lot lower down than what most riders set there's to
Sometimes referred to as a french fit.
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As I mentioned above, there is quite a bit of information on the Fitting your bike subforum; some of it is good, some of it isn't. But there are a lot of variables one should consider before shelling out good money, but then it's your money.