I've got a used 2065 on hold but I'm wondering if anyone knows of any X-Surf cards....
As someone who's run both.... Personally, I'd stick with the 2065. It's faster, cheaper, and more reliable than an X-surf.
The only downside is the Miami driver isn't as good [I run Genesis, though], and it requires a 10-b-T transciever if you want to use a standard RJ-45 cable.