I called up TimeWarner today about my cable modem service. I've had it for a couple of years now and wanted to see if there was a better deal I should be on to save a few dollars. Turns out I was able to upgrade my service at no cost and get a 4x increase in download bandwidth. Yeah! So now I've got 3 mbps down and 768 kbps up.
I was doubly impressed that they had this done and in place in about an hour. I was able to do some speed tests to verify it, plus it actually feels a lot more zippy.