Ok, guys. I need your help.

Anyone who reads this before tonight (Saturday the 7th) and has something to say, I would really appreciate hearing it!
Ok, why do we pray?
What is prayer?
Why should we have to ask God for things, if He already knows?
Does it make a difference, or are things just going to happen one way no matter what?
What are some of your favorite verses related to prayer?
Do we need to pray a certain way?
Thanks guys, anything you have to say would be much appreciated, I'm trying to look at this from different angles before our Bible Study tonight.
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I had a blast at Relient K's concert at Creation West this year, so here are some of my favorite quotes, probably somewhat paraphrased

:
"You're nice" -Relient K, speaking to their faithful crowd
"It'll be good for a laugh, and then you can use it for a coaster." -Relient K , when referring to the new short little Veggie Tale/Relient K cd comin' out.
"You know what, I just thought of something as we were playing that. This would be the perfect song for a commercial for those press-on fingernails ladies use. Hmmm." -Relient K (yet again) while performing Pressin' On