Joe, I'm using a 2 year old PC with an Athlon 600 mhz and 384 MB RAM, and though it's not the fastest around, I wouldn't say I have any real slowness problems to speak of, except when the object count gets high. Have you tried not using Open GL? Just using the viewports in wireframe mode? What kind of video card? You can take a good amount of the strain off by hiding groups of objects while working. Build your scene up in layers, and don't add the high object/polygon count objects until later in the scene. Just a few sugestions. I don't think it's your PC, but it might be your video card. But really, if upgrading your PC is a viable option, Vue wouldn't be the only reason to do it. Congrats on the work, and I hope it can go well for you.