As a way to help those few souls who haven't tried their hand at playing Apocalypse sized games of 40k, I enlisted the help of the FTW Blogger Group in putting together some info to get you warmed up to the idea of losing hundreds upon hundreds of points of models in a single shot and having a great time doing so.
Looking for all those official GW Apocalypse Datasheets?
You can jump directly to the GW page and find them here.
Apocalypse Blank Datasheet.pdf
Some FTW member Apocalypse posts:
10 Tips for a timely Apocalypse game by Pathfinder
An Apocalypse Battle report by The Astro Mag
Apocalypse Battle report by Warhammer Tau
Apocalypse Rules Beta 1
(rough draft of the Apoc Rules for Origins 2009) by 40k Origins
40,000 points, pre-organization by Sons of Twilight
Table Setup by Sons of Twilight
Using Side Tables by Sons of Twilight
Some pics of the 40,000 point game by Sons of Twilight
Six things I learned about playing Apocalypse by Citizen Nick Hobby Center
Battle report Part 1, Part 2 and more pointers for playing
Apocalypse tips and tricks by Defending Humnaity
How to win in Apocalypse with any army by Pathfinder
Apocalypse: First turn thoughts by Warpstone Pile
Using Eldrad in Apocalypse by Sepulchre of Heroes
Strategic Assets: Minefields by Battlebarge
Strategic Assets: Tunnels Part 1, Part 2 by Battlebarge
And some unofficial FTW member Apocalypse datasheets:
Eldar Storm Serpent by Path of the Exodite
Imperial Guard High Command HQ Group by Sepulchre of Heroes
Red Scorpions Vraksian Breaching Force by Sepulchre of Heroes
Vanguard Linebreaker Assault Squad by Sepulchre of Heroes