Since SAS II is no longer available...at least for a while, I did find a fusible that is very good. It is not as repositionable as SAS, but it is soft and works well. It is called Fusi-Bond Lite Adhesive from Sew Lazy by Lazy Girl Designs. I was able to purchase it by the yard at
http://www.sewthankful.com and the price, even with shipping was very reasonable. I ordered five yards at $2.89 each and the shipping was only $3.99.
I had also purchased the Pellon EZ Steam fusible at JoAnns and it was disgusting. I bought several packages (when notions were 1/2 price) thinking it would be similar to SAS, but it wasn't even close. It is supposed to be machine friendly, but my needle gunked up with ever stitch. I wanted to trace my design on the cover paper, but the paper was so slick not even a Sharpie would work. I returned all of it and did buy Wonder Under, which was better.
However, I still recommend the Fusi-Bond over the Wonder Under and I will be using it on my BOM since there is no SAS II left in the world.