Dear Busy Hands,
Just a quick note, if you haven't already been advised by someone else, you *can* accomodate more than 20 inches of knitting on a 20inch circular, however, consider that if you like to look at your work as it really is going to look, and not all bunched up then I would definitely consider the width of what you are going to knit and put them on circs that are longer (wider). That way you can spread your work out from time to time to admire what it really looks like (and it also allows you to see any mistakes made)--sorry I had to mention that.
Hope you enjoy the new purchase.
as much as possible!
Check out my blog: http://prisknits.blogspot.com
OTN: Hemlock Ring, Seraphim Shawl
Next: Mirror Image Blanket
And: Tote, Flowers and more scarves, of course!