I agree with the previous commenter. Jailbreaking has been made super easy these days, and there is so much that can be done with it. Just make sure you are doing it for the right reasons, not just to say you jailbroke you iphone.
I'm willing to bet that once you do it, you will find a ton of reasons you want to keep it jailbroken.
Caution: It can get confusing once you get going, so be patient, don't panic, and read read read instructions before starting. Here's a link to someone I have been following for years.
Hope this helps!