So I started getting back into single player Minecraft, I spent a good 5 hours on it this morning. I'm interested in livening things up a bit with some single player mods, can anybody recommend me some?

I'm not into cheating, so things like Add XP or Give me this item are of no use, I like to do things the hard way. I also play Minecraft on a Mac, so Mac Mods only please.

Mo' creatures is a good one and does what the name implies. I use the technic pack myself to make automated quarries and have lots more machinery to play with.

TechnicPack is a popular mod, it adds a lot of industrial machines to build along with loads more minerals to mine.

Hack/mine is cool - turns it into a loot driven RPG with skills and everything

The Technic Pack - Four mod packs in one, complete with its own launcher so you don't have to mess with any .jar files. Includes Technic, Tekkit, YogBox, and Hack/Mine.

Build craft, mo creatures, and industrial craft. They're pretty awesome.

@B0nd07 said:

The Technic Pack - Four mod packs in one, complete with its own launcher so you don't have to mess with any .jar files. Includes Technic, Tekkit, YogBox, and Hack/Mine.

Technic itself is a whole bunch of mods too. So with that you basically get everything you would ever want/need.