Remove unwanted programs on HP Computer

I just bought an HP desktop and a Toshiba laptop both with Vista 64 Home
Premium. Now I find out from Curcuit city that there is a bunch of oem
pre-loaded software that will slow down the computer if it is not removed.
It is add stuff they say... any clue where I can get a list of the stuff to
remove. They tell me it will take the processes from 78 to about 25. They
want $40 bucks to do it