OS - MS Windows 7 Home Premium 64-bit SP1
CPU - AMD Phenom II X4 965
RAM - 4.00 GB Dual-Channel DDR3 @ 666MHz (9-9-9-24)
Motherboard - MICRO-STAR INTERNATIONAL CO.,LTD 790FX-GD70(MS-7577) (CPU1)
Graphics - ATI Radeon HD 5700 Series (XFX Pine Group)
HD - 977GB Hitachi Hitachi HDS721010CLA332 ATA Device (SATA)
Audio - Realtek High Definition Audio
Backstory: Built this PC in Jan 2011, first ever build with the help of a buddy. Played a few MMOs: DCUO, Aion, and Tera were the biggest. Had some unsolvable problem with GW2 so I'm wondering if this needs upgraded. I'm looking at getting another 4 GB RAM in Feb/March. Any help/comments/suggestions to a complete rookie?