You must pause in the lockout, then set the bar down under control. There are no spotters for this lift. Raw competitions generally only allow the lifters to wear this, but sometimes allow a belt. Chalk is permitted in all cases. For competitions where equipment is permitted, there are different items used for each lift.
Lifters usually chalk their hands and backs where the bar rests.
For the bench, a bench shirt, which is again a very tight sort of t-shirt, and sometimes wrist wraps are allowed. For the deadlift, lifters often wear lifting slippers, a belt, knee socks to prevent the bar from chafing the shins, and the hands are chalked. Some lifters use talcum powder on their shins and thighs to prevent chafing, but this is often frowned on since spilled powder can make the platform slippery. Well then, check out some of these links. If you're at all interested in PLing, check out Deepsquatter's site , particularly the Strength email list.