1)   febooti fileTweak Download Speed 1.0
Measure your connection speed and compare it with average values of different connection types. Estimate file download times both on your and other types of internet connection. Works with multiple files, shows graphs etc.

 2)   Casper Bandwidth Monitor 1.1
Casper Bandwidth Monitor software is a utility that supports monitoring all of your network adapters at once. Be able to lock/unlock all open connections on your PC with one click.

 3)   WebSlower 2.0.2
WebSlower allows you to test local (or remote) website simulating different speed connections. It's very useful to test Flash preloads and audio/video streaming and performances. It allows also analyzing request and response headers and executing custom HTTP requests.