Yep, metering through the lens is the real solution. I've already got my eye on a metered prism finder, but for macro (especially flowers and such) a chimney might be more practical. Sadly, it looks like my upcoming stimulus is going to go for a new video card (rule seems to be, if you can really afford a computer goodie, it'll be too slow). In fairness, I have been running the same one for three years, but I just don't see how people spend two-three grand on one of those if they aren't making a living editing video or something of the sort.
I should be able to manage a metered prism and a metered chimney over the next year or so, anyway. But then I'll have to spend as much as a couple lenses on a backpack that'll carry it all.