I wouldn't suggest an alienware computer like... ever. Build your own computer! It's easy, fun, and is way cheaper than buying a prebuilt one.
Also, use optifine ultimate D5 build. That one works for me. (1.3.13)
Dude, You have to power the liquiduct with redstone. Use a lever or something.
Water pipes extract water (and water only) that's one block away from them at a 1 bucket/second rate. No power required.
Does anyone else think Greg Tech should be added? I mean there's a ton of content and seems appropriate to add to big dig.
Not sure if big dig used to have it r anything. but it seems like a great choice for this kind of modpack