Issuing tickets to agents

[kmdot]

I am wondering what the best/most effective way of assigning tickets to users is?

Here is what I want to achieve.

I want all emails to come to an admin users, then the admin user assign those issues to agents.

I want agents to be able to see only issues they have been assigned too.

I want a secondary queue, where agents can see all issues.

How may I implement this?

Thank you for any help...