DD was back to back, which for some reason I wasn't expecting so didn't read on up on the best positions.
It was a long one, after a day at 4cm, they broke my waters which made things progress rapidly. I just remember burning pain in my back, nothing else. The hardest part was transition as first it hurt in my front (so wanted to curl inwards) and then my back (the opposite).
Once pushing stage was there, it was a breeze (hard work, but not painful). As is typical it was a long pushing stage (2.5hrs) and had a 3rd degree tear (maybe because I was so tired I couldn't get into the best position, no energy left).
I asked for an epidural but didn't get one, but that part was only 2 hours long. Unfortunately I couldn't have gas n air.
As a first time, I wasn't unrealistic about the pain, it was underestimating how long it could be (and how tired I would be before it got going proper) that did me in.
DH was more traumatised by it all, for you it will hopefully pass in a drunken daze.
I remember being upset that I couldn't just sit on the toilet as that the best position. A close second was pulling on the door frame.
During the contraction I could stand nothing on my back so don't be surprised that the heat packs they offer you cause more agony (though I hear they help some people)
The massage oils for early labour were nice though even though I was a bit 
good luck (ps haven't really read the thread)