abraxas,
The very fact that you can't find a website for their manufacturer would worry me. All of the reputable companies on the market today have websites where you can find information on their products. You didn't say how much these servos were selling for, but you can get the basic model servos for any of the big radio makers out there (airtronics, futabe, jr, hitec, etc...) for approximated $10-$14 each. Trust me, that's not very expensive at all. My advice would be to leave Ebay alone and buy a name brand servo.

That's my 2¢ worth

Ken