  Within the framework of the Charge Density Wave Quantum Critical Point
(CDW-QCP) scenario for high-T_c superconductors (HTCS), we introduce a model
for tight-binding electrons coupled to quasi-critical fluctuations. In the
normal state our model reproduces features of the Fermi Surface (FS) observed
in ARPES measurements on optimally doped Bi2212, such as the anisotropic
suppression of spectral weight around the M points of the Brillouin zone. The
spectral density is characterized by a transfer of spectral weight from the
main quasi-particle peak to dispersing shadow peaks which originate branches of
a shadow FS.
  In the superconducting state our model reproduces the d-wave symmetry of the
gap parameter, which results from a balance between small-q attraction and
large-q repulsion. The gap parameter is enhanced due to cooperative effects of
charge and spin fluctuations.
