Heh, if you like Funkadelic so much I should tell you. My dad was best friends with Michael Hamptons younger brother. If you don't know who Michael Hampton is, look it up on Wiki. Cool dude.
Anyways. The reason I mentioned Funkadelic in there is because it is Psych/Funk obviously and...the other reason is, is just that they are good as hell and I felt like noting them.
Now, what I posted isn't even Doom. It's Stoner Rock really. Much different. A bit more upbeat. Less "dark" sounding. More..."listenable" I guess. Colour Haze is my favorite Psych/Stoner/Rock band.
My favorite Doom/Stoner Doom band is probably Om who just came out with a new album called God is Good, you should check it out if you haven't already.
Also, I found that album for you. When I get back from eating some dinner, I'll PM a link to you if that's cool with you!