I've been lurking around the forums for awhile now, and finally made an account! I'm not sure if this forum is only for trading or not, but I'm somewhat lost in here

For one, i would really like to see a list of hats and their value and how one would obtain such a hat. I know there are stats in tf2items.com, but they only go so far down! What I'm trying to get at is if there was such a list people would know the prices and it would help the new comers as well as some old in trading. I know that people have their own opinion of value in stuff, but I'm trying to find a general range. Obviously a V. hound dog is worth far more than a V. stove pipe.
As new hats come out, people who have just joined have no idea what or how those hats had come from. For example if you were to join TF2 today, and you see someone with bunny ears, obviously you would want to know the value and where it came from, or if you would ever get them again.
Sorry if I'm asking such ignorant questions, and if there is already such a convenient site, please escort me to it! And don't say tf2 wiki xD