Teflon Billy said:Beginnings: Westbrook would be my choice for a newb.
it's a really well fleshed-out "starting area" for a campaign, with all the pertinent NPC's not only statted out, but with the personalities mapped out for the DM as well.
it is literally packed with helpful advice for a newb DM.
Sunderstone said:You could also use ant mini-campaign modules from www.necromancergames.com .
Take a look at any of the following...
The Lost City of Barakus
The Vault of Larrin Kar
The Grey Citadel

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.