Firefox:

Firefox is an up and coming web browser that is coming along in leaps and bounds.

It's very customisable and so taking advantage of this I've constructed a some plugins for Firefox.
Please view the Firefox plugins below:

UPDATE:

I am presently working on an MSI Version of Firefox 1.0, I'm trying to ensure that it will register itself as the default web browser though.
There are some other .msi installers around that manage this but I don't believe that that manage for this to also be the case when you change the installation directory.

Type:
Title:
  
Description:

.msi Windows Installer
Firefox 0.9.3
 download firefox msi

Windows Installer version of Mozilla Firefox 0.9.3. Media based distribution built with rolling out Firefox using Group Policy in mind. Firefox msi Installer

Please note: At present this installs fine but does not set itself as the default browser. I'm try to correct this but hitting a couple of problems

Search Plugin
Google.co.uk - The Web
 install
download

A search plugin that uses Google.co.uk but is set to search "the web" by default giving you the option to select "pages from the UK" also.

Search Plugin
BBC Weather
 install
download

Accepts Towns, Cities, Countries and UK Postcode to find the weather for the next 5 days

Search Plugin
Cambridge Dictionary
 install
download

Look up words on Cambridge Dictionary's website

Search Plugin
Multimap
 install
download

Accepts Towns/Cities and UK Postcode to bring up a map of the area

Search Plugin
XE.Com Converter
 install
download

Input in any currency to output to any currency.
Plugin can be modified to have different defaults than the presently set USD to GBP.

PLEASE NOTE:
In order for this plugin to work you MUST add www.xe.com to your allow pop up windows list in your Firefox preferences.

Search Plugin
Yahoo Maps US
 install
download

Accepts Cities, States and Zip codes to bring up a map of the area

Search Plugin
Radio Times TV Listings Search
 install
download

Searches programme titles for listing over the next two weeks

Note: If you register with the site you can add more than just terrestrial channels
This same search plugin will search all your channels providing the radiotimes.com log in cookies are set.

Search Plugin
Radio Times Radio Listings Search
 install
download

Searches programme titles for listing over the next two weeks

Note: If you register with the site you can add more than the default stations.
This same search plugin will search all your stations providing the radiotimes.com log in cookies are set.

Search Plugin
Google Images (uk)
 install
download

Searches Google's Image search at the UK domain.

I decided to include this as I get annoyed at the current version changing it's icon when it updates.

Application
Search Plugin Manager
 External Site

Reorders/sorts you Search plugins in whatever order you want.