@suspolfootball tweeted on 31st January 2012 "Tonight's attendance at selhurst 14,545 with 2720 #bhafc". The official attendance was given out as 17,271 but only 11,825 Palace fans were in the ground.
Thanks - I couldn't be bothered to try and find the specifics.
My numbers were also a fair bit out. Too much time/cider has passed since then.