The cables look a lot like copper cables in Industrial Craft from Minecraft, therefore I'd rather change them. There is also other blocks that require some textures:
- AND gate (2 tiles - input and output),
- OR gate (2 tiles - input and output),
- XOR gate (2 tiles - input and output),
- NAND gate (2 tiles - input and output),
- delay-on gate (2 tiles - input and output),
- delay-off gate (2 tiles - input and output),
- switch (turns off/on signal),
- limited switch (turns off/on signal with a limited range),
- pressure plate block (emits signal, while player is standing on it),
- set/reset gate (3 tiles - set input, reset input and output),
- transformer (varies output signal range).