New Speed Test Site
I used to use Speakeasy.net for my Internet speed testing. I have recently discovered Speedtest.net and it has some pretty cool features, including a history of your testing. Below is my most recent result. See if your connection is as fast. 
I have been asked to list this speed testing site that should prove to be more accurate for any visitors from the UK:
http://www.broadbandspeedchecker.co.uk