This info comes from Moonphase, AnimeNfo, Anime News Network Encyclopedia, Pukiwiki, Anime News Service, Wikipedia and AnimeSuki Forum (mostly NeoSam's genre descriptions there (and Eggplant). I find shounen/shoujo/seinen/josei descriptions very helpful):
(I'm not including the talking doll show "Kawaii Jenny" or the little kids show "Pururun! Shizuku-chan", but they're coming out this season too. I doubt they'll get English fansubbed)
Scheduled dates are subject to change without notice.
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Moonlight Mile 2nd Season -Touch Down- (fourteen episode TV series) - Airing September 13th, 2007 11:00PM:
http://www.moonlightmile.jp/
http://www.animenewsnetwork.com/encyclo ... hp?id=8236
http://www.animenfo.com/animetitle,4006 ... mile_.html
Genre: Seinen (young men's), Sci-fi, Drama
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Choco Mimi (TV series) - Airing October 1st, 2007 5:30PM:
Genre: Shoujo
(From Anime News Service): Konami Sonoda's 4 frame manga Choco Mimi (serialized in Ribbon) has its drama adaptation debuting on October 1st at 17:30 on TV Tokyo. The fashion comedy serialized from from June, 2003 - June 2006. The cast includes Teramoto Yukika, Masuyama Kayano, Tohko Miura and Kido Yuuya.
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D.C. II ~Da Capo II~ (thirteen episode TV series) - Airing October 2nd, 2007 12:00AM:
http://www.starchild.co.jp/special/dc2/
http://www.animenewsnetwork.com/encyclo ... hp?id=8092
http://www.animenfo.com/animetitle,4073 ... a_cap.html
YouTube clip for the Da Capo II game OP: http://www.youtube.com/watch?v=_ZsQsWx4ZVM
Genre: Shounen/Seinen, Comedy, Romance, Drama, Supernatural
(From Eggplant): Similar to its predecessor, the story takes place on the same island in Japan, Hatsunejima. It is set 53 years after the original game. The Asakura sisters are the granddaughters of Asakura Junichi and Asakura Nemu from the first Da Capo. It is unknown if Shirakawa Nanaka, Mizukoshi Maika, and Suginami are related to Shirakawa Kotori, the Mizukoshi sisters, and Suginami from the first game. Yoshino Sakura and Asakura Junichi are the only returning characters, and Asakura Nemu is the only other character to be mentioned by name. Yume, Nanaka, Minatsu, and Sakura's themes are remixes of themes from previous games.
I expect this to be mostly light, fluffy and silly like the two seasons of the first Da Capo anime series. I might like it though. Hopefully it's not TOO silly, light and fluffy for me. Might as well milk your popular franchise for as long as you can.

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Bamboo Blade (TV series) - Airing October 2nd, 2007 1:30AM:
http://www.bambooblade.jp/pc/
http://www.animenewsnetwork.com/encyclo ... hp?id=8455
http://www.animenfo.com/animetitle,4077 ... blade.html
Genre: Seinen, Comedy, Sports, School Life
Kojirou is the kendo instructor at Muro'e High School. He is totally broke. He has agreed to send his team to a competition against his senpai's team. If his all female team can win the competition, he will have free meals for a year! But, the problem is that Kojirou seems unable to find five, gifted girls to form the "dream team"--and time is running out...
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Sketchbook ~full color's~ (TV series) - Airing October 2nd, 2007 2:00AM:
http://www.sketch-full.net/
http://www.animenewsnetwork.com/encyclo ... hp?id=8031
http://www.animenfo.com/animetitle,4050 ... ___fu.html
YouTube trailer: http://www.youtube.com/watch?v=ll2LYeED7bE
Genre: Seinen, Comedy, School Life
(Wikipedia manga description): a Japanese four-panel comic strip written and illustrated by Japanese manga author Totan Kobako. The story revolves around a group of female high school students. The main characters is a young shy girl named Sora Kajiwara who is unsure of what club to join in her school, but before she knows it she gets dragged into the art club and becomes a member.
At first glance it appears to be a fairly my-pace, relaxing atmosphere kind of anime.
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BLUE DROP~Tenshitachi no Gikyoku~ (thirteen episode TV series) - Airing October 2nd, 2007 2:00AM:
http://blue-drop.jp/
http://www.animenewsnetwork.com/encyclo ... hp?id=8265
http://www.animenfo.com/animetitle,4066 ... _tens.html
YouTube trailer: http://www.youtube.com/watch?v=Vyh60Ybf6Yw
Genre: Seinen
In 1995, all 800 habitants of the isolated Kamikakushi Island vanished in one night, all but a single girl who lost her memory. The cause of the disappearances was never identified. Four years later, that girl, Mari, transfers to a girl's dormitory school, Kaihou Gakuen, leaving behind her grandmother who had been her guardian ever since the incident. There, she meets Hagino. Hagino is the school idol and completes her student council responsibilities flawlessly. The moment she touches Mari