Welcome aboard.
Extended warranty is very much a question of personal choice, and is something that has been discussed extensively in this forum... just do a search. PErsonally, given that the car is very reliable, I do not think it is worth the money. Remember that, buying from a dealer, you will be covered for the first year. This should help iron out any fault you may find with the car.
On the other hand, I recommend the service plan. It is inflation proof, typically saves you 15% on your scheduled maintenance bills, and helps with budgeting.
@Tom... would be interested to hear if your warranty will cover the water pump. I would expect this to be a "wear and tear" item, and therefore not to be covered.