  The investigation of light sea-quark effects in lattice QCD with dynamical
Wilson fermions requires both larger physical volumes and finer lattice
resolutions than achieved previously. As high-end supercomputers like the
512-node APE Tower provide the compute power to perform a major step towards
the chiral limit (T-chi-L), we have launched a feasibility study on a 24^3 x 40
lattice. We approach the chiral limit--while refining the resolution--, using
the standard Wilson fermion action. Following previous work, our Hybrid Monte
Carlo simulation runs at beta=5.6 and two kappa-values, 0.1575 and 0.158. From
our study, we are confident that, for the APE Tower, a realistic working point
has been found corresponding to a volume of 2 fm^3, with chirality
characterized by 1/(a m_pi) = 5.6.
