Complete Noob

Hello!

I had posted this on another forum, but then I found that this forum was way more active so let me just copy and paste what I had put

I just found out about Bitcoin today and I already want to jump in. Like anything, that would be pretty dumb of me to do without the proper knowledge. I have a few questions that need to be answered before I do though.

What is my URL or address?
Is that the random line of numbers and letters in my wallet?

How can exchange Bitcoins for USD? Prefer a really simple method.

Does the pool matter THAT much? I am in Deepbit right now should I change to something better? Recommendations for a Noob?

I am looking at a 60 gh/s machine right now and it would be paid for in full within a few months. I did the math and found out that it would pull $19 a day worth of Bitcoins. Is this how much I would expect everyday or does this fluctuate? Like some days I would get less other days I would get more some I would get double? If so, what is a nice steady pool I can easily get $19 Bitcoins a day? I like to be steady if not it's cool.

This machine runs on 600w what is to be expected of the electric bill ran 24/7? I did a rough estimate and came up with $72. It would be nice to know your bill and profit, but you don't have to.

People say that it is not worth Mining Bitcoins, but that $19 a day seems mighty worth it to me. Is there something I am missing?

Thanks in advanced. I would be surprised if somebody actually answered these 21 questions lol.

Also to add on to this, I just recently bought an Avalon 60gh (So much for not jumping in eh?) and I am unsure if it runs on GUIminer. I love Guiminer just for its simplicity, but I read that Avalon doesn't run on GUIminer, but instead, CGMiner. CGMiner is way too much for me to even comprehend "-p," "-o" and stuff just flies all over and across my head. Somebody please tell me that this machine I bought runs on GUIminer. My machine is not here yet, but when it gets here I will have A LOT more questions. I am running on Mac right now, but if it is too much of a problem I will go ahead and go to windows.

Youtube videos on how to get my machine running would be GREATLY appreciated. I watched a few, but the people talk as if I know what they are talking about. Before I make this too long I will cut it and thank you for even reading this long post.