Web Based Ticketing System needed

Here is what I would like to get a pricing estimate for: Functionality: Would like a database driven software (Mysql?) that I can place the files on a hosting server for remote access. User (role) would like to be able to submit ticketed requests to multiple departments that I (admin role) could create, and have each submission create an email notification to email address I can assign to each department. I would like the ability to create different forms for each department as each would have different things they need answered. Would like to be able to assign those requests to staff (role) through the software, in which a department manager (role) could assign a task to a staff (role) that would email them of the assignment. Would like to be able to schedule a reoccurring event, reoccurring or future maintenance tasks... Would love to be able to have a calendar view for these as well.. I know there are products out there currently that do similar, but not with these combination of abilities, at least not that I know of.. Thanks, -Dave