So anything we suggest to you will be better than what you have currently. :)
-Seconding Flash112, build your own, an i5 or i7 processor will set you up nicely for another 5 years.
-Go for at least 4 gb of ram (I'm currently running 9).
-I'd suggest an SSD as your main HDD (for OS and certain programs and games), then a 1 TB HDD as your storage.
-I currently want the Nvidia 550 Ti and its a pretty decent card. You might be able to pick up two (but then you'd have to make sure you get a big enough case).
And that's all I got.
selfprofessedgeek
I joined
And all these demons, they keep me up all night