Sounds like a good deal to me.  From what I've heard the 8500's are a good card.  I think they make a 128 meg version.  I would see if you can get that and / or how much extra it is.  Thumbs up on the find.

I got a GF4 MX440 for 122.25 off the net.  Not the best card but just right for my budget.  Wish I saw the 8500 that you found.