Re: What kind of [sERVER ONLY] mods do you use ?
Call them plugins not mods lol (Title).
I use a lot of plugins so I won't link them. (You can just search for them anway)
ChessCraft:
In game chess with a giant board and even a timer!
ChestShop:
Sign based shops
Citizens:
NPCs
CleanroomGenerator:
A configurable world generator that I use for Multiverse.
CreativeGates:
Be able to make decorated portals.
CreeperHeal:
Highly configurable. Allows healing of explosions/fire after they happen (even prevent them).
DeathControl:
Be able to get your items back after death. It has nice configuration options and economy support.
DeathNotifier:
Customizable death messages.
dynmap:
Browser viewable map. It doesnt support custom blocks though so they would appear as shadows only.
dynmap-mobs:
Addon to see mob locations on the dynmap.
Dynmap-WorldGuard
Addon to see worldguard regions.
Essentials:
I use this as a chat/command handler/plugin.
EssentialsChat:
Addon to customize chat features.
Factions:
Faction based chunk ownership/protection.
ForeverALoad:
Keep chunks loaded.
iConomy:
Default economy plugin
Jail:
Self explanatory. Has an optional escape feature.
Jobs:
Customizable jobs. Pays per action and has job levels.
Lockette:
Door and Chest protection.
Lumberjack:
A better, more configurable alternative to the WoodChop plugin (WoodChop has issues with worldguard).
mcMMO:
Gives skills, levels, abilities.
MobArena:
Fight mobs, get rewards. Has a wave and boss system.
MobDisguise:
Changes your appearance into a mob.
Modifyworld:
More PermissionsEx nodes.
MultiInv:
Per world or group of worlds inventory.
Multiverse:
Multiworld plugin
MultiversePortals:
Cuboid Selectable portals.
NoCheat:
Prevent/detect odd behavior
NoSpeedKick:
No more "Moving too quickly" errors. Use in conjunction with NoCheat to prevent security vulnerabilities.
Permissions:
Bukkit perms emulator for PermissionsEx
PermissionsEx:
The permission plugin I use.
PickBoat:
Configurable boat behavior (indestructibility, returns boats instead of sticks, etc.)
Pigasus:
Configureable chance to spawn flying mobs per world.
PorteCoulissante:
Epic castle gates.
Rakamak:
Ingame registration/login. Useful for offline-mode servers.
OreObfuscator:
Anti X-ray plugin.
RecipeManager:
(included in tekkit) Allows for custom recipes/banning of recipes.
Register:
Economy API plugin.
ShowCaseStandalone:
Slabs that displays items. Can be shops or information givers.
SpleefExtreme:
Nice spleef plugin.
VoxelGadgetSurvival:
Basically a ranged block deployer/breaker. I use this for water fountains.
VoxelPort:
Teleport with style!
VoxelSniper:
Teraforming tool.
War:
PVP arena plugin.
WorldEdit:
It's like an ingame MCEdit.
WorldGuard:
Protect definable regions.