setting up you are walked through it it is nice and simple
only thing to be prepared for is, if you already use the hdmi out on your graphics card, for example to a TV, you will need a dvi - hdmi adapter (or a div - hdmi cable if you want to run your tv off dvi)
once you have got through the set up process - which the software forces you to do! - make sure it all works using an oculus title that you get free.
once that all works, load up elite and in the display settings, under "3D" iirc select oculus rift with headphones sound.
depending on your pc you can select your detail settings... for me with a gtx 980 and an i7 i just choose VR high (VR ultra pushes my machine far too much)... but if you are in any doubt at all just pick VR low whilst you find your feet - you do not want to be getting used to VR whilst having a less than ideal vr solution
for starters i would stay off planet surfaces once you find your feet. at the very least select comfort mode settings for the srv if you really must try it out.
imo dont start faffing with super sampling etc untill you are happy with your setup and know what you are doing.