So, this is pretty easy in c (especially with floating point, but I did a fixed-point version that works well too). I'll post that code in a little bit, and then work on converting it to an explicit stack.
Everybody loves people who don't reply all day and then send three replies in a row, right? Anyhow, the code is at tsuraan.net/bezier.tgz . It's not even implemented the way I described earlier and it's really nasty, but I think it gets the point across. I'll try to work on an explicit-stack version when I get the time.
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