Hewlett-Packard Company Informative - Purchase will guarantee a wasted afternoon.
I just purchased an hp pavilion a510n. Sadly it did not come with a restore dvd. Don't get too excited about using your brand new computer right away, instead, plan to spend the afternoon burning six restore cd's that hewlett packard failed to provided on one or two dvd's.
If something goes wrong, you will be the first to be blamed for not burning the cd's...(see compliments comments)