  We introduce a twiki page with collections of generated Monte Carlo event
samples in proton-proton collisions at LHC energies including a heavy
quark-antiquark pair in the final state. These samples are generated with the
POWHEG method and can be used to prepare distributions at the NLO accuracy with
first radiation treated according to the parton shower approach. Information
related to each event is stored in the form prescribed by the Les Houches
Accords. Standard parton shower Monte Carlo programs can be used to further
evolve these events, and simulate events at the hadron level, ready for almost
arbitrary experimental analysis. Currently the available final states are the
following: (i) t + \bar{t}, (ii) t + \bar{t} + H, (iii) t + \bar{t} + jet,
while the generation of several other final states is in progress.
