Yes, but it will require ubuntu 8.10
You twerk it.
Ubuntu is best, but then I'm biased, as my computers all run Ubuntu!
Ubuntu *is* Linux.
All pcs can run Linux. Specifically, you can download and run Ubuntu, which is Linux based. Any PC can run Ubuntu and/or dual-boot Windows and Ubuntu.
No. It is entirely possible to install and run Ubuntu on a computer without ever having run Windows on it.
Windows 7 (64-bit), Ubuntu, and I Think Macs
Yes. It is available both in Ubuntu's repository, and from the game's website.
Depending on your hardware, Ubuntu should run on VMWare just fine.
yes
Ubuntu Desktop Edition can be run on both desktops and laptops. Ubuntu has power management features as well.
Ubuntu should run on a Dell Dimension 4600, provided enough RAM is installed. I'm not sure what you mean by "run Windows finally;" Windows is a separate operating system from Ubuntu. One does not typically run operating systems "on" one another.
Ubuntu is binary-compatible with it, so you could technically install and run it. However, a system that old might have problems running Ubuntu well, especially if it doesn't have enough RAM.