Creating a Customized Setup Program

I want to distribute few programs along with my VB.NET project.

IE6
MSDE
Windows Installer
.NET components (which i guess is required to run a VB.NET exe)
The Project

how do we make a combined setup of these 5 together ??

another question is that how do we customise the setup ??

meaning..
if the first 3 or 4 of the components are already installed on the client's machine... then they should not be installed.