Fast really isn’t what it used to be, but there are ways that you may be able to keep from upgrading all your equipment just to enjoy online video.
In general, more speed is better than less, but exactly what you are getting (and whether or not you need it) is going to be a personal matter.
Many things can cause one computer to hog your bandwidth. But there’s a useful Windows 7 utility that may show you where the bandwidth is going.
The communication path between two end points will be the slowest piece of the connection path. That will be the maximum speed that you can achieve on any network.
Everyone wants a faster internet connection. I’m frequently asked if it’s possible to combine two or more connections for speed. The answer is yes … but.