  This paper follows hep-ph/9611397, where updated calculations of cross
sections and branching ratios relevant for Standard Model Higgs phenomenology
at the LHC were presented. Here, we complete that study by carrying out an
updated signal-to-background analysis. We present results obtained by using
exact matrix element computations at parton level for all processes, by
exploiting the most recent parton distributions fitted to HERA structure
function data and the most recent values of the electroweak input parameters.
Cross sections and distributions are given for two collider energies, $\sqrt
s_{pp}=10$ TeV and 14 TeV. Event rates and significances are discussed for two
possible values of integrated luminosity, 10 fb$^{-1}$ and 100 fb$^{-1}$.
