For those of you with road bikes--

How many of you have very little or next to no top tube clearance for standover?

I'm looking at a couple of bikes that appear to fit (with a slightly shorter stem), but I have almost no room between crotch and top tube. I will definitely get fitted before buying, BUT I was just wondering if this is fairly common, or if most people have a couple of centimeters to spare. This is my first road bike, so I'm having a little trouble with what "feels right" -- at this point, I'm not sure what "right" feels like. Again, I will get fitted, but I guess I just wanted to know if other people have great fitting bikes with very little standover clearance.

Thanks for indulging my strange question!
Christy