I just bought a new computer and I was seriously considering running a Linux OS on it. I have been researching Ubuntu Linux as a start, and would like to know anyone else's thoughts on Ubuntu or if anyone thinks there is a better Linux OS out there. I've heard talk about Fedora and Lime being good ones, but I also read that Ubuntu is the most popular. Being the most popular doesn't mean the best, obviously (windows sucking in my opinion,) and I would like to know the community's opinion on Ubuntu or other Linux distros
For some reason, even though Ubuntu allows you to easily update to the next version using the package manager, it's discouraged with Linux Mint. You can still do it, but it's not uncommon for it to break things. That's why I recommend using a rolling-release distribution - you never have to upgrade the whole system in one go, you just keep updating it bit by bit forever (that, and having packages that are less than two versions behind the upstream release - in my experience, Ubuntu versions of packages are no more stable than Arch Linux (a rolling-release, "bleeding-edge" distro) versions, and in fact have just as many bugs, with the further disadvantage that bugs that are already fixed in the upstream version stay present in the package manager's version for months, which doesn't happen on Arch).
Can KDE be added to Ubuntu afterwards? - I have download Ubuntu already but not installed.
Does Ubuntu have good support for NVidia graphics cards? I have been using Fedora since version 9 - it seems to be a bit tricky to do this. That is one has to reorganise the kernel manually with dracut.