presision

I need help deciding to buy - 1. 22" wide screen LCD what should i get LG or Viewsonic?and whats thier price. 2. 600 watts PSU, how about coolmaster? and the price 3. whats the price of XFX 8800 GT and XFX 8800 GT alpha dog edition and which one should i get 4. Headset logitech Digital Presision...