RE: Thanks Trevor!
Thanks for the wise advice.  I'm aware of all the scams and usually tend to be skeptical of everything!  The item I bid on (Smokey autographed microphone) comes with a photo of Smokey signing it.  Even still, I did a lot of follow up with the seller, who works for a radio station and claims she got the autograph before a Christmas performance in LA.  The photo helped convince me, but even still it could be a fake. Smokey was just in my area in Feb. but I wasn't able to get an autograph cause my seats were nosebleed (hey, he's not getting any younger so who knows when he'll be back in my area!) I do think I'll take your advice and have the signature authenticated by a professional service and if it is a fake, I'll take action with the Seller through Ebay. It also helps that I'm a paralegal so filing a law suit for a fraudulent claim is pretty easy! ;-)
BTW, what's your most prized autograph? 
Lorrie