Anyone have any experience with the Zoom Telephonics 5590AF? I'd like to try it out but if it isn't reliable I'll probably just go with a Speedstream 5100. My second question is, does anyonw know where I can buy these online?
Speedstream is a good product, I've never used the other one you mentioned. You can find pretty much anything on eBay, or just do a Froogle search for it. Also, make sure you contact your ISP before purchasing anything to make sure it is compatible with their service.