mdtauk said:
OK, now I am surprised. I am not a techy and this was my first self-built PC, how would I go about tweaking it all for performance? The RAM will be costly, but I will see what I can do.
With the RAM you have right now, you can set the FSB to 133MHz for a free upgrade, making your processor 33% faster.
In truth, your processor and motherboard supports 166/200 FSB, but your current RAM will not allow that. Sadly, you'll have to lose the 1.5GB RAM you have to get to the speeds your processor was intended for use at. RAM is not as expensive - make sure it is PC3200 RAM. PC3200 would enable you to have a 100% increase in CPU speed with a 400MHz FSB.
As you are a non-techie, I suggest you ask someone knowledgable you know to take care of all this for you so that it is completely safe.
mdtauk said:
its a MSI KT6 Delta LSR...
Okay, your motherboard is actually pretty decent. Pretty feature-rich (as your device manager screencap shows) and supports up to a 3200+ Barton. Read here to find more info about your motherboard - including BIOS settings and other helpful info:
http://www.hardocp.com/article.html?art=NTE2
After all this, you can replace the TNT2 with a 9600 Pro as you say, and you can then play games like Farcry without any problem, and be able to use all the new N64 plugins that use Pixel Shaders. Your PC would take a 9600 Pro no problem - you even have AGP 8x support.