After reading the comments$^1$ and looking through various texts, I am going to use Understanding Digital Signal Processing for my self-study (Oppenheim & Wilsky was my 2nd choice). I'm 99% sure that a solutions manual doesn't exist. But does anyone know where I can find the errata for the 3rd edition?
I saw an old thread where the author, Dr. Richard Lyons offered to send it to someone so I can email him personally, assuming I can find his address. Before going that route, I figured that someone here may have it. Thanks.
$^1$${\tiny\textrm{ Thanks to all for past threads where this was discussed and great advice given.}}$