You might want to check the builds section for any necro builds that might have been posted in the past.
Choosing to take either a wand or a staff is a matter of personal choice. While wielding a wand, you can also hold a focus. A staff, however, is two handed. While the focus might still show on the paper doll, it will be crossed out, and the effects/benefits will not show. The advantage, however, of a staff is that there are many upgrade components for staves. Wands and foci cannot be upgraded.
If you wish more detail, searching the forums for "wand staff" will give you many options, including one particularly useful thread:
http://www.guildwarsguru.com/forum/s...ght=wand+staff
Please try to use the search button first in the future.
