Also it's really useful if you have a friend who plays because they can give you tips and pointers, teach you new things and you will have someone to jam with (very important) when you get comfortable with playing.
Good luck! Oh let me just add: learning guitar was the best decision I ever made!
You dont need a great one to start off with, I think its fine to just get a cheaper one and if you decide to stick with it then later get a good one.
If you are just beginning it doesnt matter what type it is, my brother likes playing punk and hardcore and he started playing on a classical acoustic. Then he later got an Ibanez iceman electric.