@fransezomer thank you. Im gonna do a bit of research for the 9200c regarding the ram and see what's up with it so i dont waste any money...
As for Nvidia drivers, i ended up downgrading mine (on my main PC) to 328.x drivers. My FPS in diablo3 went from the usual 120-180 fps to all over the place from slideshow 10fps to 100 fps. The whole system was a bit of a glitch fest. Maybe it was an isolated reason.. who knows. the fx 8350 + gtx 660 is more than enough to play D3 and most games!
That being said, your crashes sound driver related or some other software related issue rather than "slowness" of the CPU. try checking your logs to see what's crashing
p.s. does anyone know if it is even physically possible to install a second hard drive in the 9200c? (i.e. removing the DVD drive, etc)