Eclipse (Shareware version linked in the signature) covers cyberware, implants, and other types of enhancements, as well as races and templates, for d20 pretty much the way that the Hero system covers things - a set of effects and general abilities, how to buy them, and how to corrupt and specialize them to make them cheaper. The Practical Enchanter (also a shareware version linked in the sig) has a section on superheroics and special abilities as well, with innate/implanted/developed powers taking the place of external special items and equipment.