We present results of a high statistics study of f(pi), f(K), f(D), f(
Ds), and f(V)(-1) in the quenched approximation using Wilson fermions
at beta=6.0 on 32(3)x64 lattices. We find that the various sources of
systematic errors (due to setting the quark masses, renormalization co
nstant, and lattice scale) are now larger than the statistical errors.
Our best estimates, without extrapolation to the continuum limit, are
f(pi)=134(4) MeV, f(K)=159(3) MeV, f(D)=229(7) MeV, f(Ds)=260(4) MeV,
and f(V)(-1)(m(rho))=0.33(1), where only statistical errors have been
shown. We discuss the extrapolation to the continuum limit by combini
ng our data with those from other collaborations.