For the last 4-or-so years, I wanted (and needed) to upgrade my machine and I feel that I can't hold it off for much longer. Currently I'm eyeing Intel's i7 Core and nVidia's GeForce 650 and higher. Can you recommend a good Sound Card, Motherboard and any other components I might need, and any good retailers/outlets that offer the items at good price and have a worldwide shipping abilities (I heard that Newegg and Amazon are quite good choices).