Here are Non-BuildCraft Items that are needed to create or use BuildCraft items:

Grid Cactus GreenCactus Green is needed to craft Pipe Waterproof.
Grid CobblestoneCobblestone is needed to craft Steam EnginesCobblestone Pipes and Stone Gears.
Grid DiamondDiamonds are needed to craft Diamond Pipes, Diamond Gears , Lasers, and Redstone Diamond Chipset.
Grid GlassGlass is needed to craft Pipes, Tanks, and engines of all kinds.
Grid GravelGravel is needed to craft Structure Pipes
Grid Gold IngotGold Ingots are needed to craft Gold Pipes, Gold Gears, and Redstone Gold Chipset.
Grid Iron IngotIron Ingots are needed to craft Iron Pipes, Iron Gears, Combustion Engines, and Redstone Iron Chipset.
Grid ObsidianObsidian is needed to craft Obsidian Pipes, Assembly Tables, and Lasers.
Grid PistonPistons are needed to craft all BuildCraft Engines and the Filtered Buffer .
Grid Redstone DustRedstone Dust is needed to craft Conductive Pipes, Chipsets, and many other items.
Grid Redstone TorchRedstone Torches are needed to craft Refineries.
Grid StickSticks are needed to craft Wood Gears.
Grid StoneStone is needed to craft Stone Pipes.
Grid Wooden PlanksWooden Planks are needed to craft Redstone Engines, Wooden Pipes and Filtered Buffers.
RedBlueGreenYellow.gif Dyes are needed to create pipe wires

Grid Crafting TableCrafting Tables are needed to craft Automatic Crafting Tables.

Grid Chest
Chests are needed to craft Filtered Buffers
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