You're welcome. I think you'll find that WG4 and S4 combined is a massive campaign - huge tracts of land (no, really, they both have large outdoor encounter areas), great dungeons, very cool GREYHAWK information therein. I think you'll like it quite a bit.
2. T1-4 THE TEMPLE OF ELEMENTAL EVIL
3. WG4 THE FORGOTTEN TEMPLE OF THARIZDUN
4. S4 LOST CAVERNS OF TSOJCANTH
5. S1 TOMB OF HORRORS
I'm all over it!
2. T1-4 THE TEMPLE OF ELEMENTAL EVIL
3. WG4 THE FORGOTTEN TEMPLE OF THARIZDUN
4. S4 LOST CAVERNS OF TSOJCANTH
5. S1 TOMB OF HORRORS
Do this and your players willcursethank you!
There are places where the party can train and level in those two modules, and moving back and forth between those and the dungeon/encounter areas, coupled with critters repopulating during those down-times will keep your players occupied for quite a while.
The Tharizdun/ Tsojcanth is really cool and should surely be tried if you have never played it. I enjoyed playing and running them. If you can squeeze it in then run I1 wellers of the Forbidden City. Its a personal favorite of mine. I ran it again several years ago using 3.0 and the adventure was still as awesome as ever.
I love T1, but ToEE...I will just say it is an adventure a lot of people start, but don't finish.
I hear that's the case with alot of the old adventures, but that's fine. I'm working with new players. I can set their death expectations appropriately from the beginning.