In regard to sig items,
If you ever come across this guy,  http://www.geocaching.com/profile/?guid=aa7cbd41-d7b5-4dc7-a57e-930eb9fa64df  check out his binders full of sig items. There were two at an event I was at last year and the quality of sig stuff and the variety was really impressive. I hope to see the 2005 binder one day!
http://www.geocaching.com/track/details.aspx?id=42823
http://www.geocaching.com/track/details.aspx?id=75348