I'd actually like to hear from you guys what cross-mod stuff you've been able to find. Part of the fun of modded MC for me is seeing what sort of crazy idiocy I can make with multiple mods combined in unexpected or innovative ways. A common example is the combination of TC4's Infernal Furnace and Dartcraft's Ore Chunks, which give you 2.6 ingots per ore and byproducts. For example, I found a really interesting mechanic yesterday that I wanted to share:
Metallurgy adds an ore in the Nether called Midasium. It's not insanely rare (at least not in RR) and the tools and armor pieces are fairly useless, but the dust can be combined with any other dust to get 1 Gold Dust. Normally this isn't hugely cost-effective since you have to grind down other metals to use it, but it turns it that this works with Pulverized Obsidian, which can be mass-produced in huge numbers relatively easily, and even better AE's Flour. Basically, you can make gold from bread.
So, what have you guys found?
Metallurgy adds an ore in the Nether called Midasium. It's not insanely rare (at least not in RR) and the tools and armor pieces are fairly useless, but the dust can be combined with any other dust to get 1 Gold Dust. Normally this isn't hugely cost-effective since you have to grind down other metals to use it, but it turns it that this works with Pulverized Obsidian, which can be mass-produced in huge numbers relatively easily, and even better AE's Flour. Basically, you can make gold from bread.
So, what have you guys found?