Here's what you have to choose from:
Radio Shack: PRO-96, PRO-2096, PRO-106, PRO-197, PRO-18
GRE: PSR-500, PSR-600, PSR-800
Uniden: BC296, BC396xx (all variants), BC796, BC996xx (all variants), or the Home Patrol HP-1
The one you noted from Wal-Mart will NOT get you what you want...
Whatever you get, suggest that you also invest in programming software for the model you choose.
If you get the PRO-197, I can send you a file for the WIN500 software.
Pop'Comm Monitoring Station: KPC4YGG