We need an SSL certificate to facilitate remote access and administration by a small number of employees. I don't want to have to train a bunch of non-technical users to install a self-published cert on their home computers, so I'd prefer to purchase one from a well-trusted provider. We won't be using it for any kind of e-commerce or things like that, so it seems hard to justify paying the prices demanded by some of the big-name providers.

Who are some good low-cost providers to consider? What are the important differences between the offerings that are available at different price points? (And is the certificate business really as much of a racket as it seems?)