I use Shaw High Speed Cable Internet which advertises a 5 megabit download bandwidth. This is what I'm getting on the 1.5megabyte test.

::::::::::.. Download Stats ..::::::::::
Connection is:: 1705 Kbps about 1.7 Mbps (tested with 1496 kB)
Download Speed is:: 208 kB/s
Tested From:: http://testmy.net/ (server2)
Test Time:: Wed Jul 27 2005 10:30:42 GMT-0700 (Pacific Daylight Time)
Bottom Line:: 30X faster than 56K 1MB download in 4.92 sec
Diagnosis: May need help : running at only 58.87 % of your hosts average (shawcable.net)
Validation Link:: http://testmy.net/stats/id-KICPGQXJR

Also, I noticed that depending on which type of test I do will vary on my dL speed result. For example, on the medium test I got 70kB/s, the large 100kB/s, the largest 137 kB/s. I acheived the best result on the 'larger' test which as you can see gave me over 200kB/s. All these speeds are fine for me, thats not what the problem seems to be. The real problem is real downloading. Whether it's straight off the internet, P2P, or Bittorrent. I get lackluster speeds that aren't consistant, and will rarely go over 40kB/s.
I've done the CableNut tweak and the P2P tweak, but is there anything else I may be able to do?