I'm wanting to create a page which will allow users to quickly determine which "package" they need. eg. What I want is if the user selects Products Q, T & Y the code/page will then show the minimum requirement is package two. What language would allow me to do this?
Javascript. The code would execute every time an option is selected/deselected, then it would update the recommended package choice based on that. Javascript is also very quick and easy to learn, although you do need a good knowledge of HTML first. W3Schools do very good web programming tutorials.
If you've got your product listings and groupings locked up in a database, you might need to do some kind of AJAX type thing with the javascript also. If the application is complex enough that you don't want to code all the javascript yourself, you can use a library like jQuery which will help you out with lots of common stuffs.