Hi Brian welcome to the forum ,
I am not a big fan of unnecessary java script the no right click what are you trying to protect ?.
date and time again unnecessary java script clutter.

Pages seem to have spaces in the names not good
/Dublin%20Computer%20Solutions%20Services.html
I am sure the name is important but the search engine will give more weight to the title ,
you can use up to sixty five characters in your title make good use of it.
Your left side nav bar could be improved with the use of ordered lists instead of spans.

Robots.txt
your robots file allows all agents User-agent: * so the <meta name="robots" content="index,follow"> is superfluous
include a link to your sitemap in your robots.txt http://www.dublincomputersolutions.com/sitemap.xml

sitemap.xml
change freq = daily ,If your site is not being updated daily push this out to a month.

Over all the site has a Clean design with good navigation and clear descriptive text.
the code is a little verbose could do with a bit of a clean up.
Ghost