Oh Donna, you are SO doing the right thing!
My daughter is a million miles away, my son only 2 hours--my daughter sends regular cyber-hugs and love and I would love to feel my son was 'there' for me.
(I do get a 'duty' call once a week as he commutes home from work!)
Joe, take all the above advice, but I can honestly say that knowing you have a loving son and/or daughter there for you to laugh, cry, love with you is the most precious thing ever for a mom whi is 'going through it' for whatever reason.
Your mom will appreciate you more than you'll ever know,
Brenda