How can I make VIM a full fledged IDE

How could I make VIM a full fledged IDE by using different supported plugins for YUI, JQuery and git integration etc.

Can you turn Vim into an IDE?

This means that it is possible to install and configure any number of plug-ins to extend Vim's functionality and literally build the perfect editor, specifically for you. This article will demonstrate how to turn Vim into a lightweight IDE by installing and configuring a range of useful plug-ins.

Does Vim support all languages?

The latest edition of the widely used Vim text editor now supports both the Lua programming language as well as the latest versions of Python and Perl. Bram Moolenaar, the developer behind Vim, has released version 7.3 of the editor, two years after version 7.2 was released.

http://vim.wikia.com/wiki/Use_Vim_like_an_IDE

This has links for various plugins for vim. Explore on this site and you can find a few more resources and tips for using Vim as your IDE.