Hey , Nick.
I would'nt say any of it is as good as when Van Morrisson was in the group , just as I would'nt saw Van Morrisson was ever as good again , after he left the group (He has his moments , in my opinion.).
Belfast Gypsies and Them were never one and The same , though we've all been told that. Ugly Things ran an interview , explaining that Belfast Gypsies were two members of an ever changing lineup in the band , during Morrisson's tenure as a singer. The name "THEM" was put on their LP sleeve without their consent. That much said , Belfast Gypsies' CD (Or LP , if you can find it.) is really good , raw killer R'n'B in the Them /Animals vein , but not nearly as tight a band as Them . Good singer , obviously trying to sound like Morrisson or Burdon , and coming up sounding Punk as fuck.
"Now...and Them" , one of two LPs they did on Tower Records (Them tried to conquer America around 1966 -7 , on the strength of their past hits , but , again , with only one or two actual members of the classic lineup.) , is pretty good , it's uneven , but it has some good rockers on it.....Later , still , they recorded some singles and a COUPLE OF LPS ON LABELS LIKE RUFF ( Out of Texas.) and Happy Tiger , I think it was....oN THE LATTER, THEY RECORDED GOOD COVERS OF CHARLIE RICH'S "LONELY WEEKENDS" and The Electric Prunes' " I Happen To Love You", in a more "Garage /Psych" mode...Some of the original or semi - original members reconvened in 1969(?) and did an album with Psychedelic versions of "Gloria" and "Baby , Please Don't Go". But , the lineup continued to shift , well into the late 70's , when they did one reunion 45 , which is'nt bad , but , there's no telling who's on it. I even saw an add saying THEM was playing some 60's fest in Germany just a few years ago. There's probably a version of the band , with no original members , floating around Europe , somewhere. Nothing I've heard , post - Van , has been BAD , as long as you don't hold it up to the Them/ Them Again era recorded input. I'd start with Belfast Gypsies, and see what you think , after that.