I have just bought the new HP Compaq DC 7800 Business PC which comes with the Limestone - GL8E (ASUS P5LP-LE) motherbnoard. I would like to upgrade/replace my graphics card and install the NVIDIA GeForce 9800 GX2 and a good 3D (gaming) card. 1st query - Which 3D card would you recommend? 2nd query - Does my motherboard support that specific graphic card? Your quick responce will be much appreciated. Thank you in advance.