I am not extremely skilled with the hardware side of computers, yet I am relatively knowledgeable. I built this PC a few years ago (not completely certain, I am certain someone else could tell me better than I can).
I am hoping to run GW2 smoothly on relatively high graphics settings on release. During the BWE, I was able to run on the highest settings (without any shadows) when in PvE, however I dropped it because it seemed to reduce clipping when in WvW (I still had extreme clipping issues).
From what I can tell, I could probably use some more RAM (4 GB seemed like more at the time). My processor may also be slightly under powered. It is an unlocked dual core AMD Phenom(II) processor which has not been overclocked at all.