www.partsexpress.com has a nice and cheap crimper for coax, its the one with the green handle. I am not sure what snap and seal is, if your talking about a compression connection then keep looking.

The Coax Clarifier determines individual run quality as well as to determine the ability of the overall system's capability to deliver good quality video at both standard and high definition levels.

Using the existing wiring of your home is a hot topic here on this blog, and it seems like D-Link's new product might make it a bit easier. This morning, networking company D-Link introduced a Coax ...