Building new computer specifically for Video Editing

[Angelo Mike]

I’m wondering if I should upgrade or just build a new computer. The first thing I want is a new graphics card, since I only got my cheap, Nvidia GeForce GTS 450 so I could take advantage of GPU acceleration in Vegas 11 (my Radeon was listed as compatible with Vegas 11 yet it never recognized it).

But if I’m going to do that, I’m wondering if I should get a new CPU and more RAM. Or a new motherboard altogether (this can only take up to 24 GB DDR3 RAM). Or would more RAM at least make a difference for me until I do a full upgrade? Here’s a screencap of my specs.