Getting google shoppng up and running can be a pain, you have to setup a xml file that has all the boxes ticked. If you are selling normal stuff then this is easy enough, just a hassle, and if you are selling unique things this can be a real pain and you may have to purchase EANs. Again depends on the ecommerce platform you are using, some can build the xml for you automatically. I've not done this for a couple of years so please anyone correct any errors I've made.
Google analytics has a bunch of tutorials that are extensive, I can't remember the format. Have you set up analytics on the site already or are you looking for a cradle to grave walk through?