Development Environment Needs?

Trying to figure out what development enviroment we need in order to
do the following:

- develop a non-native SQL server stored procedure;
- call a web service or java program from the stored procedure;
- return static values;
- call the stored procedure from a view.

How do I get a hold of the right tools and what do I need to put the
pieces together?

Obviously, I've not used SQL server and I'm looking for the basic
starting point.

Thanks!