I need a plugin where you can set what happens when players step on a block. I want the blocks to be set with world edit. Possibilities: Parkour checkpoints, Speed boost blocks for minigames, A replacement for tripwires and command blocks!
http://dev.bukkit.org/bukkit-plugins/blockeffect/ Can fix your speed blocks thingy. Doesn't have a worldedit option, but it does come with a coords option?
Looks like ReActions could be useful for you too Here is example video. Player enters and leave regions and gain/lose effect. You can combine this feature with long list of actions