First let me address with Guild Wars running on your laptop according to your specs.
Godly Paladin wrote:Windows XP
1 GB DDRII RAM
Intel Integrated 950 Graphics Chipset (256 MB, shared)
Core Duo (1.6 GHz)
Will it run, do you think?
You have the right operating system. Your RAM and CPU are above the stated minimum system specification according to the Guild Wars information. In fact, it seems like these particular components are close to their recommended system requirements.
I had to look at Intel's website on information about your integrated graphics chipset. It seems it should be able to handle the graphics of Guild Wars just fine according to the Guild Wars minimum system specification. Just do not be surprised if you cannot comfortably play at the highest resolution with every single special graphic effect turned on.
Guild Wars was originally released at Fall 2005, I believe. It is definitely not a polygon pusher that requires bleeding-edge hardware. Like many other MMORPGs, Guild Wars wants to attain a very large worldwide online PC community. So it is not going to demand the latest hardware.
I believe Guild Wars will be playable on your laptop if you have been maintaining your laptop properly. I would not worry about it.
Now, about your PC playing games in general.
Godly Paladin wrote:Recently I've been disappointed by games not even running on my laptop. I'm used to lowest graphics settings and undesirable framerates, but like I said it seems like the last four or five games I've tried to play haven't even worked.
If you are serious about PC gaming, I strongly suggest you have at least 2 GB of system RAM with Windows XP, and at least 4GB of system RAM if you go to Windows Vista.
An Intel Core 2 Duo processor is a very good choice in today's market, but for gaming I would recommend you get one with a frequency that is at least above 2 GHz.
Finally, your graphics chipset is your most important component for PC gaming, and Intel's integrated graphics chipsets simply do not cut it for serious PC gaming... not even close. The two quality graphics hardware manufacturers are ATI and Nvidia. I am familiar with Nvidia's hardware lineup, and I would suggest looking at their 7000 family as a minimum with at least 256 MB of video RAM.
My suggestions here will not make your PC a super machine that can play the latest games with the latest graphical effects, but it will be able to play a lot of them and look nice.