Thats only wireless G which will work if you don't have an internet speed greater than 54Mbps and/or you aren't moving tons of files over your LAN network.
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I will now take some time to describe what your internet speed REALLY is. (I think bisjac did this a while ago in a speedtest thread)
Your internet speed is given to you in Bits per second, not bytes per second. Every byte is made up of 8 bits (a bit is a 0 or a 1).
So if you have an 8mbps (megabits per second) connection and you want to download an 8 mb (megabyte) file, it would take you 8 seconds because your internet speed is 1 megabyte per second.
/rant