Where should newborn sleep?

I thought everything should be natural, but there are so many issues to decide. One of them is: where should newborn sleep?
For nursing purpose, baby should sleep very near to mother, but there are risk for the small body sleeping next to adults on the same bed. Looking through the products on sale using babycenter coupons and babyage coupons, there seems to have some alternatives: Arm's Reach co-sleeper, a close and secure sleeper or may be a NightForm Infant Positioning Bed might also do.
By the way, I noticed that the price (excluding shipping) for the secure sleeper is much more expensive than what I saw 2 days ago.

There are also a whole range of products on discount using online coupons.