A first update (21:50)
- So it took quiet some time for this first update to appear, as I had some difficulty partitioning my HDD. In the end it was a Windows problem, bug, I'm not sure.
I solved it by using a third party software, even though sadly it wasn't open source, the free version did it's job. 
- I will now go into actually installing Ubuntu. Let's see how this one goes.
- Success! At least the very scary part is over, accessing the BIOS. Luckily I've done this before, so I wasn't too intimidated. I'm currently installing Ubuntu, which already at first glance has a very nice interface! So that's a big plus.
- Had a little problem when choosing the settings where to install everything. The "root file system" wasn't defined for whatever reason, but a quick Google solved the problem. Currently everything's installing and looking good.