Good call. Mount Gay is a nice drink and offers endless comedy value.
Also worth a try is Appleton's (particularly their special reserve).
Best rum I ever had was Pusser's British Navy Rum. It's about £25 a bottle but worth it. Incredibly smooth despite the liver-mangling strength of 54.5%. Treat yourself sometime; you won't regret it
I'll drink anything lately, I asked for some JD for christmas so I got two bottles of Whiskey off my gran, a bottle of Grants, and a bottle of canadian whiskey, she said after i'd unwrapped it that someone gave it to her last christmas and she's not bothered about it (even though she buys whiskey for herself). I'm into real ales more currently than i ever have been before.