I am, for all intents and purposes, a Linux newbie. I've used it, of course, and tried a (small) number of distros (Ubuntu, SUSE, Fedora, Mint), however being a gamer I've never been willing to convert either PC or my laptop (A fair amount of work has gone into their windows installs in terms of gaming) to the ol' Linux market. However, I am quite certain that I absolutely need to get to grips with the OS, and do have a handful of "needs" so to speak. I want something 'work' orientated. I'm officially a "technical engineer" (1st/2nd/3rd line support, give or take. We don't have lines, since there are so few of us, it's easier for everyone to do everything), and as such I want something I can configure the *ahem* off, when I get more comfortable with the OS, and thus more adventurous. However, I don't fancy spending days and weeks setting the machine up. I realise, however, that my choice of machine (HP Probook 4520s) lends itself to needing a bit of work with the ATi drivers, but in my experience that's not been too horrendously painful. I quite like the sound of CentOS, as an alternative to RedHat. I don't like Ubunutu - For whatever reason - but that's about it. That is, in its entirety, my "preferences" relating to Linux. Knowing that I'm a bit of a newbie, and that I'd like an OS with some business world grunt, what'd be recommended by the linux guru's kicking about here?