  We present holographic desciptions of dynamical electroweak symmetry breaking
models that incorporate the top mass generation mechanism. The models allow
computation of the spectrum in the presence of large anomalous dimensions due
to walking and strong NJL interactions. Technicolour and QCD dynamics are
described by the bottom-up Dynamic AdS/QCD model for arbitrary gauge groups and
numbers of quark flavours. An assumption about the running of the anomalous
dimension of the quark bilinear operator is input and the model then predicts
the spectrum and decay constants for the mesons. We add NJL interactions
responsible for flavour physics from extended tecnhicolour, top-colour etc
using Witten's multi-trace prescription. We show the key behaviours of a top
condensation model can be reproduced. We study generation of the top mass in
(walking) one doublet and one family technicolour models and with strong ETC
interactions. The models clearly reveal the tensions between the large top mass
and precision data for delta rho. The neccessary tunings needed to generate a
model compatible with precision constraints are simply demonstrated.
