Dayvan Cowboy

TYONDAI BRAXTON (my favourite musician)
tyondai braxton is a member of battles, and recently released the awesome album "central market" in 2009. i recommend the songs "platinum rows" and "J. city" (classical / experimental rock / ?)

DON CABALLERO
don caballero is a band that also has a member of battles, ian williams. go download "what burns never returns" and "American don", and don't download any albums after "american don" because they're not as good as the stuff ian williams worked on. check out their songs "room temperature suite" and "june is finally here" (math rock / post rock)

MASERATI
it's a post rock band, a damn good one, too. their album "inventions for the new season" is quite awesome. my favourite songs off of the album are "12 16", "the world outside" and "kalinichta" (post rock)

AND SO I WATCH YOU FROM AFAR
another post-rock band. starting to see a pattern? their self-titled album is really good and isn't just your average post-rock album, either. it's a really emotional, all-out instrumental rock explosion. it's been feature on many "best of 2009" lists. check out their songs "i capture castles" and "eat the city, eat it whole" (post rock, again)

THIS TOWN NEEDS GUNS
ANOTHER FREAKING POST ROCK/MATH ROCK BAND (but with vocals). their concept album "animals" is a sunny, math-fest that i really like. check out their songs "pig" and "panda" (math rock)

SURFER BLOOD
I usually hate those surf-rock acts, but i am a big fan of this group. i don't know why, though. their album "astro coast" is really fun and has been given great reviews. check out their songs "swim" and "harmonix" (surf rock)

STEVE REICH
i personally love minimalist elements in music, because the repetition makes it quite hypnotic. some of my favourite compositions by him are "music for 18 musicians", "electric counterparts" and "different trains"
(minimalism / classical)

sorry about the TL;DR-ness of it.
i couldn't say it in any fewer words.
oh well.
enjoy.