Nexus one, need rooted.

Hey guys I'm new here. I got a nexus one running gingerbread. Always loved the phone. But don't have much memory and can't download many apps. The most I use is 8 to 10 apps at most. Can somebody help me or give me some encouragement. I want to be able to use the phone. I'm starting kind of a collection of my favorite phones through the years. This is my number one favorite. I use only unlocked phones and currently use T-Mobile prepaid plan with 80 dollar unlimited. I hear its pretty easy to root. But I'm just learning about root, jailbreak, flash , etc. Thanks for any help. Rick