First congrats. Second, I would recommend getting an extended warranty - specifically for any major components. Start with your dealership- do some research on the company that provides the insurance they resell.
Also, if you have a good relationship with your SA, ask him/her about whether they are worth their value.
There are a number of discussions on this topic in the main 6 forum. Do a search there on "extended warranty". There are some real stories with results.
Nick / TopDownInFL (sans the "top down")
2012 650 Coupe - Alpine White / Black Interior / M Package / Premium Sound
2008 650i Convertible
2004 645Ci Convertible - Reverse Sensors / Reverse Camera
2005 545i Sedan
2003 330Ci Convertible
2001 330Ci Coupe
1998 323i Convertible
1995 318i Sedan