Additional: Computers are rarely actually as fast as you think they are. For example, if you get a PC with a CPU three times the speed of your current CPU, it won't be three times the speed of your current CPU. That is to say, on paper, executing code already in the on-board cache, your new CPU may be three times the speed of your old one. It MAY execute commands at three times the rate/frequency - but that is far from the end of the story. For example, the CPU has to communicate with the RAM. RAM is, whilst hugely faster than a hard drive, notoriously slow when compared to CPUs. We've been "stalling" our CPU's to slow them down when dealing with RAM since at least the days when we had 386 processors (back even further if my dim memory serves me correctly). RAM has come along greatly - indeed it's often quoted now in terms of frequency rather than response time, to make it easier for people to judge the comparative speed of RAM when compared to CPU (or motherboard). Of course, it doesn't help that there are several speeds of "Double Data Rate" RAM, but that's an aside. You'll probably have RAM that's rated as being about 400MHz, yeah? Your CPU has to slow down to that speed to access it - so whenever you load a figure, or post it, or...well, anything really the CPU is likely to have to slow down to RAM speed for chunks of time. There is an excellen chance that you won't be thripling the speed of your RAM and the speed of your IDE controller (it was probably a UATA already) and the speed of your graphics card and even if you did there's a bunch of other stuff on the motherboards chipset which hasn't tripled in speed. Windows98 in particular sucks (though not as much as Windows Me!). I love it dearly, but it's not for 3D and not for modern software :( If you triple the size of your RAM you ARE going to load more into it. If you have managed to triple the speed (I doubt it) then effectively you'll have stood still... if you haven't then that aspect (the RAM) could even feel slower at times (but only because you're doing more). Change OS. If you stick with P4 and don't put too much RAM in (I had some odd memory-related issues with Poser and P4, ESPECIALLY when I had Win98 - that was really bad!) it should fly in doing what you currently do. But I'll bet you 100 that you end up doing more and better with it until it feels slow again.