is there a way to test maximum download\uppload speed?

ive got a cable modem,and i was just wondering if there was any way to test my max transfering speed? thx if you reply

 

Check out your speed with this speedometer:

http://us.mcafee.com/root/speedometer.asp

 

Here's another good one.

http://bandwidthplace.com/speedtest/

 

and another

http://www.dslreports.com/stest

 

THX TOP AND FIRM, www.DSLREPORTS.com\test WAS THE PLACE FOR ME,IT GVE DOWNLOAD AND UPLOAD, but i had to convert it to KBps myself,it shows kbps there.