I agree with Dino that the startup programs is the only place you'll notice any real difference in boot speed but if you really want to disable the boot animation then the this should work. Open a cmd window as Administrator and type
bcdedit /set {current} bootux disabled
To re-enable it type - bcdedit /deletevalue {current} bootux
bootux values can be - Disabled, Basic or Standard
And I think "Windows Search" is the indexing service, don't know what effect it has on anything else though.