4am

WorldEdit, CommandBook, PermissionsBukkit, RecipeManager, OpenInv, Vault, DiskDriveFix, Multiverse-Core, ChopTree, Herochat, Jail, CleanroomGenerator, Multiverse-Portals, Multiverse-Inventories, Multiverse-SignPortals, Multiverse-NetherPortals Plugins with strikethru came with Tekkit. So far no issues as long as I run the plugin version meant for CraftBukkit 1.1-R4. One plugin I did have an issue with was (obviously) TrainCarts - Railcraft is awesome since I was setting up an extensive subway system and so controlling it with RailCraft and ComputerCraft seems like a natural next step; however I love the ability to link minecarts together that Traincarts provides, as well as it's station system (using signs and hidden torches), but it's instantly conflict city with RailCarts.