different manufacturers use the term switched hub for different things, but thru it all they are still hubs, with a shared bus, collision issues, and all the other performance issues with hubs.
let me preface this by saying that I work for Cisco: have you talked to a reseller that specializes in Cisco? We have a program in which Cisco will buy back older networking gear when being replaced with Cisco product.
Check the Cisco website fort he reseller nearest you.
http://www.cisco.com/public/crs/locator/