Mike, you were lucky - the Yahoo page probably means the scammers were shut down before you "signed in." When we forward scam e-mails to
spoof@ebay.com or
spoof@paypal.com, they really do act quickly to shut those sites down. The quicker we report a new scam, the quicker it can be shut down so Mike is protected.
You were also wise to change your eBay password right away - good thinking, just in case.