How about some mods? :)

[NathanialJones]

Post your favorite mods!
It can be out out of date or updated,
Simple!
I'll start:
Better Dungeons mod

[SalsaInABowl]

Optifine. And Optihelp. Only mods I ever used.

[hammysandwhich]

SnapetheSnipe is a good mod... Ahh wait, tekkit is my favourite.

[CazualxGrenade]

Love the throwable bricks mod, butter mod, turtles mod, MINE turtles mod, MOAR butter mod, and the ninja mod. So many more that I like, but these are byfar my favorite ones.

[Nhataley]

1. TMI (To Many Items)
2. Optifine
3. Tale Of kingdoms Mod
4. Mutant Zombie Mod

Note: I do not use them on OptiCraft

[ivy2112]

cheatpack of something
it gives a lot of mods in one , you can enchant items up to level 128 , potion effects up to 100000min , etc all that kinda awesome stuff

[hennydeez]

I've lost all my trust in you guys. Tsk tsk tsk.

[SalsaInABowl]

Hey, I said Optifine and Optihelp, so you can trust me

[hammysandwhich]

What's wrong with tekkit??

[Coolcrab88]

Optifine. I can't live without it.

[Xeadin]

Optifine, Biomes O' Plenty, Mine Little Pony, Better Than Wolves (although it is a standalone... )

Zombe's Modpack is no longer my favorite

[SalsaInABowl]

Optifine. I can't live without it.

[Mr_Mr_Mr]

Zombe modpack and optifine.

[PsYk0Wo1F]

Nodus client or PsYk0Client.
not used on opticraft. just sayin.

[RuthlessTomato]

Nodus client or PsYk0Client.
not used on opticraft. just sayin.

Ive heard le name but what is nodus?
Also is the PsYkOClient up for public use?