To answer the questions, after the Brock fight Heath left fighting to break into the movie business. He might even still be doing that. He also helped start up a small promotion in South America somewhere. Seriously.
In terms of him as a fighter, he was my favourite guy back in the day. The guy was pure entertainment. Sloppy entertainment with no trace of TDD, but entertainment nonetheless. His strengths lay in his power, his kicks, and insane sub defense and scrambling ability. Solid cardio, too, especially when he was younger. His weaknesses were wrestlers or just people who went for the double leg on him. His TDD was just so terrible.
By the time he got to the UFC he was pretty banged up after all the wars in Japan. The Jake O'Brien fight he fought hurt and stunk the joint up pretty bad but he bounced back and beat Brad Imes (WHOOPY) and came as close as you can get to KOing a fighter without getting the W against Nog. He also outgrappled Kongo just before Cheick hit his prime. The Lesnar fight was just terrible and it was obvious from the start he was in over his head.
All in all, Heath had an excellent career and should be remembered as being elite for his time. Some of those hairstyles, though...
