I'm using liquid lame, and it's the devil. It's harder (for me) to deal with than spandex.
Errr... anyway, I found a place with a good quality spandex for an amazingly low price. It was like $8.50 per yard, but I forgot where I purchased it from.
I'll try to find it again.
I can't find the link, but here's an alternative: http://www.spandexhouse.com/spandex.htm