The DPC3000 cable modem offers the best performance and reliability using the DOCSIS 3 standard. The sheer pleasure of using internet along with your productivity whether or not you're using it for your business, will surely soar using this latest data transfer standard.
Apparently this modem isn't that easy to obtain, many internet providers offer only professional installation at home. So you cannot just buy it and install it yourself easily. This is where online stores come in handy.
The performance of Scientific Atlanta's network devices seems to be better than that of Motorola. The firmware revisions were easier to install on SA modems, while Motorola had issues.
So if you don't want to pay for "pro installation" to get your modem replaced, buy it and set it up yourself.