If you don’t mind pricey stuff, go no further: http://www.sennheiserusa.com/newsite/category.asp?transid=cat34
You need a shot gun (ME 66) for field interviews and a stick mic (MD 46) for on cameras (stand ups). If you are on a tight budget, you may want to start with MD 46 for both purposes.
As I am not biased towards one manufacturer, I would suggest you to have a look at another great group of products: http://www.shure.com/ProAudio/Products/WiredMicrophones/index.htm. Currently I am using VP64AL.
As for the lav mic, here is the one: http://www.lectrosonics.com/catalogs/UniversalCatalogPages/LavMics-M152.htm
coming with the range of wireless devices suitable for your stick and shot gun.
I have heard good stuff about Sennheiser wireless lav mic pack, although did not have a chance to try it. I guess you can’t go wrong with Sennheiser.
