tax deductions

[melioris]

I have a question for those Americans that pay taxes on your poker winnings. Although I am not filing as a "pro", I am wondering if I can take deductions like it is second business out of my home. All of my playing is done at home. I have a list of things I am wondering if I can deduct, as all are poker costs. -1 at life for the first Canadian that posts "I don't pay taxes on my poker winnings" or something similar.
What I pay for internet?
Fat new monitor?
New keyboard and mouse?
Laptop, if it for poker and other stuff?
Anything else?