As one that has to look at everything out there, lol, I'm also considering Biblioplan. I really, reallly like the samples that I've looked at so far. I'd love to hear from anyone using this with highschoolers. Do you think it could be mostly done independently and accelerated? My ds only has 2 years left, and I'm wondering about trying to do all four years in that time. Also, what do you use for your core for year one? Would Streams of Civilization and the Companion be enough? Thanks in advance for any thoughts!