Slide 1:
In this talk the prospects for discoverying Higgs bosons
in the SM and the MSSM via their decays to SM fermions with
the ATLAS experiment is discussed.

Slide 2:
The importance of Higgs boson decays to fermions in the SM and MSSM is 
outlined. An overview of final state topologies investiaged arising from 
the combination of production mechanism and decay mode is given.

Slide 3:
The characteristics of the signal for VBF, H-->tau tau is described
and the dominant background classes are mentioned and how a 
background reduction can be achieved is discussed.

Slide 4:
Event display for VBF, H-->tau tau --> mumu +4 nu.

Slide 5:
The survival probablities of a veto on a third jet are discussed.
Special emphasis is given to the influence caused by pile-up and 
the modelling of the underlying event.

Slide 6:
The quality of the reconstruction of the invariant di-tau mass in the 
collinear approximation is discussed and mass distributions after
all selction cuts are presented.

Slide 7:
The method and its accuracy for the estimation of the dominant Z+jets 
background from a data control sample is described.

Slide 8:
The sensitivity for discovering and excluding a Higgs boson
in VBF, H-> tau tau including systematic uncertainties is presented.

Slide 9:
The calculation of the signal cross section for the production
of MSSM Higgs bosons in the association with b quarks is discussed.

Slide 10:
A comparison of the predictions from  different calculations and event 
generators for the bH final state with one tagged b-quark is shown.

Slide 11:
Event display for bH, H-->mumu.

Slide 12:
Summary of the analysis strategy and mass distributions
for H-->mumu decays in the MSSM are given.

Slide 13:
The method to estimate the ttbar background from a control sample in data 
and its anticipated accuracy is discussed.

Slide 14:
The sensitivity of the H-->mumu analysis for discovery
and exclusion in the MSSM is presented.

Slide 15:
The analysis and sensitivity in the MSSM of the search for the decay
H-->tau tau --> ll 4nu produced in association with b-quarks
is described.

Slide 16:
The signal and background for the search for ttH, H-->bb
and the challenges of the analysis are described.

Slide 17:
The expected performance for b-tagging and the reconstruction
of the Higgs boson mass are discussed.

Slide 18:
The event yields and mass distributions after all cuts are shown
and the statistical sensitivity and the influence of systematic 
uncertainties on the disocvery potential are discussed.

Slide 19:
The basic idea, advantages and challenges  of the search for H-->bb
in the boosted topology arising in the associated production
with weak gauge bosons is presented.

Slide 20:
The final considered states, the used cross sections and
event generators are listed.

Slide 21:
Some details of the analysis with emphasis on the jet subfinding,
jet filtering, b-tagging and mass reconstruction are discussed.

Slide 22:
The mass distributions and event yields after the full selection
and the expected statistical sensitivity are summarised.

Slide 23:
The influence of systematic uncertainties on the discovery potenial
is discussed and future plans and open issues of the analysis are 
presented.

Slide 24:
The sensitivity of various search channels in the SM and their combination
for Higgs boson masses below 200 GeV is summarised.

Slide 25:
The plans in ATLAS for the calculation of the cross section 
for VBF production are discussed.

Slide 26:
The plans in ATLAS for the calculation of the cross section 
for b(b)H production are discussed.

Slide 27:
The plans in ATLAS for the calculation of the cross section 
for Higgs production via gluon fusion in the MSSM are discussed.

Slide 28:
Conclusions are presented and the next foreseen steps are discussed.