Right now on my 1.3.2 world, I'm running IC, BC, Forestry, Railcraft, Ironchests and a host of IC addons. I'm looking for a few good mods to round out the world, specifically:
A Gun mod (Heuristix doesn't seem to work with this build, at least I can get the armory but not the guns)
Some kind of mod adding meta-blocks that turn large block builds into moving objects like zeppelinmod, prefereably that create floating/submersible vehicles.