How to create customized asp.net page to fetch custom list data from custom list on sharepoint 2007 site?

Question

How to create customized asp.net page to fetch sharepoint custom list data from custom list on sharepoint 2007 site?

1. I have a custom list on sharepoint site.
2. I need to create an option in custom list menu toolbar (something like Print).
3. On click event of this menu option , a new pop up window should open.
4. New pop-up window should be able to display all the list data.

I have been working on this since 1 week now. Any help is very much appreciated. Thanks in advance! Please reply asap if you know any information related to same...

Regards, Parul