Omega S10065 Synthetic
+1 The smell is perfectly normal, though it does vary from brush to brush. You can wash the knot to diminish the smell, if you like. However, it will go away in a week or so on its own. I also found doing a few test lathers with Proraso Green helped kill the bad smell quicker.That's how they all smell. You afterall, using the hairs from an animal that at one time was living.
As of this moment: RazoRock Plissoft Synthetic is on sale for $9.99. An amazing deal!
+1 on the Omega S brush, it is the lowest price brush I own and the best performing brush.I love my Omega S brush and it was just $8. It's synthetic so you don't have to worry about having to "de-funkify" it. But, with the advice here and a little research you should be able to find a good brush of any material in your price range.