http://www.adamszabo.com/jp6k/
Basically, it's all you ever need for making really nice supersaws packed in a nice, easy-to-use VST for 25 euros (36.0675 US dollars according to Google as of this post). I use this thing sometimes more than NI Massive. It's a lot more useful than it sounds...just check out the sample tracks if you don't believe me.
Affordable and legitimately useful...yeah, I think this is a good recommendation.