apple laptops are fantastic.... you won't regret it. I've had my PB for for just over 6 years and its still running great (tiger) and with a bit of care it will look like new for as long as you have it.
one recommendation i have read around the forum is that it is a good idea to erase the preloaded installation of the OS and do a fresh install. if i recall correctly it had something to do with the GPU driver (might be wrong though)
however it is still a good idea to do a fresh installation, this way you can gain dome HD space by selecting the language/s that you need, you also can select which printer drivers you want.
regarding printer drivers, you might want to deselect all and download the latest from the manufacturer website.
i hope this helps.