First of all, you need to boot your PC with the bootable DVD you created.
As for installation procedure, you may find the following link very helpful http://www.ubuntu.com/download/desktop/install-desktop-latest
Also; if you need to install as a Dual boot system. Please you have to BE VERY CAREFULL and do not proceed with any step or make any selection oryou may break your current operating system or even worse; destroy all data on your hard drive.
And by the way It is not very complicated in this OS as you said . You just need to be familiar with and know what you are doing :) and you will then Fall in love with it ;)
A last note : I would highly recommend using Try Ubuntu without installing to get familiar with before actually installing it (Not sure if available in the Ubuntu Studio specifically as I never used it) but you may download Ubuntu ISO from http://www.ubuntu.com/download/desktop and give it a try.