I just barely have clearance over most of my bikes. I can stand comfortably over them in bike shoes, but it's still touching or less than an inch. (obviously I have a lot more clearance over my mountain bike). I'm 5'1.

I haven't had any problems with the lack of or minimal standover height, and haven't "racked" myself yet - I just find that with my body proportions, the best way to get a bike that fits me (long top tube, 73 degree seat angle), is to get the biggest frame that I can buy that fits. Smaller frames tend to have shorter top tubes, 75 degree seat angles, lots of toe overlap, and I end up hating them.

Now, one day if I go custom, I'll probably get a bike with more standover height... But till then, standover height is not that big a deal. If you look at rivendell's website, for whatever it's worth, they call standover height the distance up to your pubic bones and don't count all the fleshy pieces in between. and pretty much say if your pubic bones clear, that's fine. Obviously, lots of people disagree with that.