I'm pretty sure it was me during the time you were getting me into post rock stuff.
As for my list, in no order whatsoever:
Madvillain - Madvillainy
Dinosaur Jr - Farm (even though it's new, I think I have to put it on here)
Mice Parade - Obrigado Saudade
Dirty Elegance - Finding Beauty in the Wretched
Mt. Eerie - Wind's Poem
Xploding Plastix - Amateur Girlfriends Go Proskirt Agents
Opeth - Blackwater Park
The Unicorns - Who Will Cut Our Hair When We're Gone?
TV on the Radio - Desparate Youth, Bloodthirsty Babes
School of Seven Bells - Alpinisms
After those, it's a tie between a lot of stuff: Through the Looking Glass by Alias, Yoshimi Battles the Pink Robots, Operation Doomsday, Mm..Food, Deltron 3030, Beautiful Freak by the Eels, The Great Depression by Defiance, Ohio; and Everything Ecstatic are some of the things that jump to mind.