I doubt that it matters who made the card. Since it is OEM, it almast always means it does not have a warranty, other than the one mwave offers. ATI's OEM's normally tend to be manufactured by only one company (It used to be saphire, and I believe it still is) so you can trust its reliability. As always, if you buy OEM, you buy the graphics card, not the package.
Looking at the pictures, one can see that the pictured card is a Saphire, although everybody knows that pictures aren't always accurate.
For $199, it looks like a pretty good deal to me.