You can test your speed by clicking on this link:
http://promos.mcafee.com/speedometer/test_0600.asp
I had gotten an email from Comcast tonight saying that they had doubled my connection speed for "free." When I had AT&T Broadband, I always had good speed. When Comcast took them over, I could swear that the speed dropped. I don't like Comcast. But, after getting the email, I did a before and after test. Before getting the quicker speed, I blew 1.3Mbs. After getting the quicker speed, I blew over 2Mbs. So this is good news. If you have a cable modem, you should be getting at least 800kbs on a regular basis, hopefully more.