E Newsletter, how to make CRON operational

I've looked around a bit but did not see just what I was looking for.. I understand that CRON operates due to a visitor to the website, however this section of the website does not get high traffic on a regular basis, thus this solution would be very unreliable for us.

I was thinking I could perhaps do a wget CRON on the VPS so that it just triggers a page, would that work? If so how frequent would you recommend the wget operate? Is there a particular page which you would recommend we hit with the wget?

Alternatively, if there is an internal command / script that I should tag with the CRON to be more effective, please do make a suggestion.