Hi Circe...you're gonna love eNature.com. The bird audios are awesome, as is all the info. they provide their habits and markings. I use that site often.
I have a pileated in the area of my home too, but have only "seen" it twice. I hear it often, tho. It sounds to me like a jungle bird...a very unique sound. I hear it alot in the early morning, drumming on a tree. What I didn't know, when I spotted it, is that you can't identify the sex the same way as Downeys or Hairys, since both sexes of the pileated have red heads. You need to look closely for a red mustache.
Theres also a little hand-held thing for sale at <a href="www.identiflyer.com" target="_blank"></a> ...it would be great to walk thru the woods with. Sometimes I hear a song and then don't get it right an hour later when I'm looking for it at eNature. I think I'll put it on my Xmas list...(and then buy it for myself... <img src="/images/graemlins/wink.gif" alt="" /> )