Today Dropbox 2.5.24 experimental build has been released. Dropbox 2.5.x series to bring redesigned setup wizard, pause syncing option and smaller installer for Windows. Dropbox has offered web/smaller installer for testing in build 1.7.6, seems they want you to test it again.
Dropbox setup wizard has been redesigned and it is looking good from here, with this, Dropbox setup completes in four steps. After downloading Dropbox to your computer,
1. Click on install button to start Dropbox installation.
2. Enter your email and password and click on "Sign in" button or press Enter
3. Select your Dropbox plan,
4. Dropbox successfully installed message appears with options to "open Dropbox folder" and link to "Advanced Settings" at the bottom.
Dropbox finally gets Pause Syncing option
After installing this build, you can able to pause syncing from tray popup and it offers the option to Resume Syncing after selecting pause syncing.
Selective Sync UI which lets you select which folders to Sync to Dropbox installed computer has become more responsive.
You can download and this test build from Dropbox forums.