Congrats on your new pistol. First thing you should do is read the manual in it's entirety. It will tell you most of what you need to know about your new pistol. Here's the link.
http://www.sigsauer.com/upFiles/CmsC...022-Manual.pdf
As far as what products to use. Mine came with a little bottle of Sig Oil and a couple of nylon brushes. I also use Otis.
http://www.otistec.com/pc_product_de...B6D1ED9C6A1FB5
Good luck and safe shooting.