Re:asking questions...is one of the reasons I like to shop at our locally owned places. Fifth Season Gardening is one of my favorites:
http://www.fifthseasongardening.com/

In fact they'll often lend advice without even having to ask.

Thats pretty neat that you're gonna grow quinoa this summer! Have you grown that before? As much as I consume, I should really grow my own too. How big of a plot do you have plant to get a decent harvest?

I like quinoa too. And I've been thinking about planting grain crops in my beds over the winter. But I can't ever figure out how I'd harvest and make any use out of them. I just keep picturing myself with a big stone grinding wheel powered by the downhill force of the water in my rain barrel and it seems more like a Buster Keaton movie than something that would actually work. ;-) So seriously, how do you harvest it?

I'm just trying a small bed for right now, about 100sq ft, I could possibly double it next year if I felt successful this year, and tuck plants here and there around my yard. This is definitely an experiment this year more than than a food crop. Plus, even if I don't get any seeds, the plants are gorgeous (and the leaves are edible!). All the info online says about 1200lbs/acre, which calculates out to about 2.75lbs per 100sqft. I don't think I could ever grow enough to supply myself for the year, but who knows.

The folks at Natural Gardener are growing it in their fields this year, and they say to harvest it, you just cut the tops off and shake the individual grains out into a bag. No threshing required!