Once you have the spelling patterns down and are fairly confident with them (which is the level I think you’re at), vocab builders are best – and you’ll be able to see more advanced spelling patterns in the words as well.

Spelling books really depend on your learning style – the best one I have seen is called Tricks of the Trade, it’s a yellow cover with black writing. It comes with a smaller handbook, and outlines all of the phonetic patterns while letting you input your own words in the correct categories. Here’s a link: http://www.thedowsschoolroom.com/tricks.shtml

This one may be a bit young for you, not sure, but I know high schoolers have used it. If you’re looking to compile a spelling reference, it might be useful. (Otherwise, I’d say just stick to the vocab.)

Hope that helps!

(I love your curriculum questions by the way – they get me thinking in detail toward what to order for my son as he gets older!)

For more proficiency, and practice in spelling, and writing I would recommend Write Shop.

http://www.writeshop.com/

Or you can just take a vocabulary list and use that