Quote: My Dell 2400 Dimension has a graphics card called "Integrated Sound, Video & NIC. Is this good enough for what I am trying to do
Not by a long shot I'm afraid.
Video editing is one of the most intensive graphics applications you can use and your PC doesn't even have a separate graphics card which is a basic requirement.
The software has told you the minimum requirements and I would opt for a card with at least 256mb of RAM on board. You will need to identify a spare slot on the motherboard of your PC. The ideal is PCIe, followed by AGP and finally PCI but you will find it difficult to get a PCI graphics card with 256mb of RAM.
Do you know that we're all in line for succession to the throne? Really?
Well, if forty-eight million, two hundred thousand, seven hundred and one people died I'd be Queen.