That all depends on your budget. Are you gonna be editing HD? If so, I say you should get an intel Quad Core or an i7. i7 is almost twice as fast a Quad, so its a better for the money even, I believe. With an i7 you can get upto 24GB of RAM (not that you will need that much) I would get about 6GB. This will suffice for HD. Also, graphics card are very important for video editing. Make sure you get a good one. nVidia makes the best, respectively. If you go onto Dell's web site you can customize a Studio XPS for anywhere from $600 to $4000.
Remember: vista 32 bit only recognizes 3.25GB ram. You need vista 64 to go above that limit. I don't think VMS supports 64 bit officially now. Check the website to be sure.
c.s.p.... please check your information before sharing it.
The 24GB RAM comment would be in reference to a 32-bit OS vs. 64-bit OS, not the processor itself.
Sony Vegas Movie Studio's performance is based on processor power, not GPU power (where as Cyberlink PowerDirector utilizes the CUDA technology nVidia provides, for example), so while a modern GPU is always a plus, it won't make much difference as the benefit comes from a modern processor.
Anyway, video editing can be intense, so build the best set-up you can afford with CPU, RAM, and hard drive speed. Also, with a multi-threaded CPU, make sure you adjust the settings for rendering threads in the Vegas software to take advantage of your processor.
Studio XPS 435 Intel® Core™i7-965 processor Extreme Edition 8MB L2 Cache, 3.20GHz. You can add up to 24GB tri channel RAM at 1066Mhz. This what I meant, and If I stated it wrong that was my fault. I also beleive I told him to get nVidia graphics cards, an ATI is what the Dells come with. But they work nearly as well.
Thanks everyone.. I am still concerned that the preview will still slow and stagger... I find this a problem as most of my videos are music videos and I need to see lip sync etc, at the moment its a bit of a guess....
I dont do HD at the moment however I want the pc to be able to handle HD editing.
Preview won't ever be at "real time", there is no system that can render multi camera/crossfades/effects and the like in real time.
I'm using a Dell XPS 600 Quad Core with 4Gb of RAM on XP SP3 with a dual NVidia GeFroce 880 GT.
I do music video, live concert video and other video that requires "syncing", such as matching 24 tracks of recorded video to 3 cameras in a time line. It's challenging, but it can be done (I'm using Studio 9, not Pro). Having it render in real time won't help you line it up any better.
The trick is to zoom into the time line, find the common points in the videos, as well as a marking point in the audio. I have found that once the video from different sources all line up to one point and the audio is matched up, everything stays lined up.
Short of investing in SMPTE timing, this is the easiest way to do this.