Mnemon: As this is somewhat solved now, I'll hijack this :).
I am still on LInux Mint 13, the previous LTS release. Always disliked (and got tired of) the 6-month re-install cycles with most Linux versions - and am much in favour of rolling releases in principle. Played around with Arch Linux in virtualbox, a bit, but as I only have one computer and no other way to access internet never really went for a proper install: I can handle working with terminal, but not without access to all the guides and advice on the inet out there, during installation.
Am intrigued by Manjaro as a not quite as DIY intensive variant, but with the rolling release advantages of Arch. Anyone out there that used Manjaro for a while? Experiences? What edition (KDE / Openbox / XFCE) did you use - and why that one?
Feel free to hijack away, this is as resolved as it's going to get.
Anyways, my advice to you is to make sure you have a working install on a thumbdrive or similar. That way if things go wrong you can more easily recover from it. I had to do that several times recently because of some unexpected speed bumps from trying to upgrade.
Rolling releases aren't inherently good or bad, it depends a great deal on who it is that's controlling them. Personally, I'm sticking with an LTS release on this computer just so that I won't have to upgrade for a few more years.