More plugins!

Sprint:
http://forums.bukkit.org/threads/mech-goldensprint-v1-0-configurable-sprint-plugin-766.13255/

lamps:
http://forums.bukkit.org/threads/mech-lampstone-v0-6-automatic-night-time-lamps-677.7030/

Game types:
http://forums.bukkit.org/threads/mech-fun-war-v1-4-2-slim-minecraft-tdm-ctf-670-740.250/

Bigcatch:
http://forums.bukkit.org/threads/mech-bigcatch-v0-7-making-fishing-more-interesting-766.5180/

Auto save:
http://forums.bukkit.org/threads/admn-autosave-v1-3-0-automatic-world-saves-740.4316/

Sprint - Yessir
Lamps - U can already do this with pumpkins and redstone, i just dont think its necessary
War - was already on my to do list
BigCatch - Why not
Auto save - Essentials already does this very effectively