  Fourier series in orthogonal polynomials with respect to a measure $\nu$ on
$[-1,1]$ are studied when $\nu$ is a linear combination of a generalized Jacobi
weight and finitely many Dirac deltas in $[-1,1]$. We prove some weighted norm
inequalities for the partial sum operators $S_n$, their maximal operator $S^*$
and the commutator $[M_b, S_n]$, where $M_b$ denotes the operator of pointwise
multiplication by $b \in \BMO$. We also prove some norm inequalities for $S_n$
when $\nu$ is a sum of a Laguerre weight on $\R^+$ and a positive mass on $0$.
