You dig Roast Fish Collie Weed and Corn Bread by Scratch, right? There was a time when I could not stop playing that album!
I'm glad you always rep Blackheart Man. That's a unique totem pole in the world of roots.
I don't need to tell you that Marley/Wailers' entire discog is pretty much essential (I can find time for anything in the run starting w/ Soul Rebels and ending w/ Uprising).
You already brought up Heart of the Congos, one of my favorite LPs of all time.
We just talked about Trenchtown Mix Up.
One thing I would say about Funky Kingston is you should make sure not to be listening to the '75 edition of the record. Get the original '72 edition!!! The '75 version mixes Funky Kingston and In The Dark together; both those records should be heard in their original format!! Can't stress this enough... and it's yet another example of honkies screwing up good reggay albums. (other Toots rec: Monkey Man)
I'd echo (much more emphatically) what Einhorn said about Culture. Two Sevens Clash is a great one.
I'm sure you've heard the key Upsetters releases, right? It's summertime... time for Super Ape to come in heavy rotashun, mon. And also... Upsetters 14 Dub Black Board Jungle, while containing many riddims you've likely already heard, is a mother of a record to play all at once. One of the earliest dub slabs...
What about Burning Spear? The '75 Marcus Garvey LP in particular... and Marcus' Children. Make sure you're getting the original track listings!
I'd pick Tosh's Equal Rights over Legalize It... though both are great.
We just talked about Dadawah. In somewhat similar vein (long-form roots), try Ijahman's Haile I Hymn (Chapter 1) album.
Can I include other dub stuff here? Scientist has a bunch of essential shit (Evil Curse of the Vampires, for starters, but a few more). I see a Keith Hudson LP in your list. You should get into Playing It Cool & Playing It Right. Very dense, smoky sound. And if you like that one, try Flesh of My Skin: Blood of My Blood (even smokier).
Do you know/dig Augustus Pablo? You must! Many choices there... East of the River Nile would be my first pick, I think. Again, I've got more recs than just that one!
Do you know Hugh Mundell? Africa Must Be Free By 1983? He was 16 years old... great Augustus Pablo tracks (and I believe Scratch did the title track?). shame he left us so young... he would've been a superpower once his voice fully matured.
What about the Mighty Diamonds? Right Time is a gorgeous, mellow record, with Sly & Robbie once again holding down the fort.
I'm also wondering if you'd be interested in the "dub poetry" of Linton Kwesi Johnson. It's an acquired taste, but he is a powerful voice once you get into him. Forces of Victory would be my first stop. But he also did an album called Dread Beat an' Blood credited to Poet and the Roots that is just as essential.
Well, it's Monday morning and I should pretend that I have a real job and do some work. A few more recs:
Johnny Osbourne: Truths and Rights
Dennis Brown: Visions of Dennis Brown
Ini Kamoze: self-titled (1984) [you'll recognize a famous sample if you play World-A-Music; this is my favorite dancehall record]
Prince Far-I and The Arabs: Cry Tuff Dub Encounter Chapter III (not for the weak of heart!!)
WEIRDNESS (deejay/toasting, to be more specific)
Did you mention Dr. Alimantado's Best Dressed Chicken in Town? If nothing else, you can track down the original riddims/tunes he's riffing off of (such as Gregory Isaacs' Thief A Man).
Pug, I have much much more for you if you need it. God, 6 years ago or so, reggae was my life, and I eschewed rock n roll almost completely. Lots and lots to pull out of my drawers from those days... have a good one! and smoke em if you got em. (this is really making me want to go home to my apartment and lay around with weed and roots all day instead of sitting at my desk for the next 8 hours besides going to the gym...)