I'm not at all handy or experienced with computers but I'm interested in getting GW2. Im not sure if my computer can run it though. Is it a very demanding game?
It's not demanding at all, you should be able to run it fine.
Here are the minimum requirements which I found.
CPU: Intel Core 2 Duo 2.0 GHz, Core i3, AMD Athlon 64 X2 or better
RAM: 2 GB
Video Card: NVIDIA GeForce 7800, ATI Radeon X1800, Intel HD 3000 or better (256 MB of video RAM and shader model 3.0 or better)