I think it'll be nice if the CN could be optimized for speed a bit. Same way eCabinets is after adding a bunch of new features. Sometimes the amount of time it needs to lead is ridiculous. And that is from the main window clicking on the CN button. Inside CN going to the cabinet part list might be even longer.
Roughly 17K for the upgrade. Take about 5K off of that being in the US. RAM is definitely cheaper Also you could check your Motherboard specs and see if you can upgrade the processor. Those two items will be considerably cheaper and should see you get performance increases.