The wadding I used was just a package of two pre-cut polyester wadding pieces bought from Spotlight for the bargain basement price of $7.99. I don't think it is specific upholstery wadding, but it was nice and fluffy and was the right dimensions for what I needed so that's why I picked it.
Finally I think the fabric makes a world of difference. The chenille type fabric I used is nice and thick so the stitches sink in and any crooked or dodgy sewing is hard to see! It's also fluffy so less susceptible to wrinkles, and it's nice and warm to sit on.
Anyway I hope some of you are inspired to go and give recovering a chair a go, it's pretty boring sewing but an easy way to update your furniture.
oooh gotta go, the Bold and the Beautiful is on - my guilty addiction since becoming a stay at home mum LOL!