Bought a mid-tier HP Pavilion recently and cannot _stand_ the touchpad on it. I carry around a USB mouse for that laptop. I largely prefer the mac touchpad because it allows you to click everywhere on the surface, not just the bottom.
HP until recently didn't use precision touch drivers.
When looking for a new laptop it should be the first thing you check in the reviews - if it doesn't have precision touch drivers it goes in the do not buy list.