Very nice regex info in this thread, thanks guys.
I guess those of us who use embedded small-caps fonts instead of gambling on support for "transform" and "font-variant" are going to have to mend our ways.
Edit to add: For the lead-in on a new chapter, I usually use all-caps styled for .7em bold, following a large drop-cap or large initial cap. I use the small-caps font for stuff inline in other text, such as "signatures" or signs, etc.