Alacrity pc works fine , glary utilities can help also.
Go to black viper as well, cut down the number of processes you run when you computer is fresh up, and not doing anything, it'll help your pc performance out as standard. If you are unsure of what a process does, do some research.
Things that do not need to be running all the time include, any updaters, itunes, any p2p software, some of the hp rubbish they install along with their drivers etc etc.
Wurz