You are aware that every item in Sitecore has the Analyze tab in which there is a "Reports" option where the user can see reports specific to the item? I realize that these are really "canned" reports, but it's not too difficult to create new ones or adapt the existing ones to give you what you want to see. If the reports aren't specific enough, you can always create your own reports and then just simply drop them into the item reports folder here: /sitecore/system/Settings/Analytics/Reports/Item Reports/. Also, keep in mind that all the SQL queries are located in items here: /sitecore/system/Settings/Analytics/Reports SQL Queries and it's not difficult to add a parameter (i.e. the date parameter for example).
I know that it has a bit of a learning curve, but creating your own queries and reports capable of taking some user input isn't out of the question. Please let me know if you have something specific or if you need further help. I've spent a good amount of time doing custom reports and I'd be happy to answer any questions.