I think you posted in the wrong State Forum. I believe your referring to DeKalb County Georgia? I will have one of the global moderators move this over there for ya.
EDIT: OOPS on the tired error my apologies. From the listings we have, almost any scanner will work with the Sheriff's Office, County Fire, and local PD's/FD's. THP, TEMA are on the TACN and that requires a top dollar Digital Capable scanner as was mentioned by another poster.... Will have to check on the status of their narrowbanding, but it should be complete by now.
Suggestions for everything but the State Level Agencies: BC15X, PRO-97 or newer, PSR-300/400. If your wanting to do the TACN, then you want more along the lines of BCD396XT/BCD996XT, HP-1 (EE), PRO-106 or newer, PSR-500/600, PSR-800, PRO-18.
Since your talking lower budget level, that knocks most of the newer digital scanners out, as they start around $250.00 to $300.00 and go up to $500.00 on E-Bay, and our own classifieds boards. You can get a good non digital for anywhere from $75.00 to $200.00 if your timing is right on both E-Bay and our classifieds. Best of luck to you and again, sorry about earlier snafu, trying to do things when dead tired before a nap is a nono.