huesman: About saffron;. Although mainly a colorant, you can overload it if you try to overcome the cloves and cardamoms. Tumeric can be used, but it will produce a much more haze and can add an off flavor. I find saffron produces a much better color effect, and a local health food store will have the saffron, and although a bit pricy; saffron from India or Spain tends to be less expensive.
Long story short, I find saffron adds a much better effect with less amount when you compare to tumeric.