If my memory serves me right, there was a JREF Japanese member who lives in Chiba, but she hasn't been here in a while...
So, just my two cents on my general impression of Chiba, especially Chiba City.
Chiba City is very close to Tokyo proper and is in effect a Tokyo suburb, with many of its residents commuting to Tokyo for work and school. So, I don't think you'll find the city any different from the outskirts of Tokyo you lived before. The only difference would be that you will be living closer to the beach (Inage Kaigan) and to Tokyo Disneyland/Disney Sea (Maihama). There is also the Chiba Lotte Marines to root for if you have any interest in baseball, since many Chiba residents are ardent Marines fans, thanks to its manager Bobby Valentine (former NY Mets manager).
As mentioned earlier, Chiba City has excellent access to Tokyo, so you'll find it easy to get there for entertainment and shopping. If you head eastward across the prefecture, you'll get to the Pacific Ocean side of Chiba, where the sea is more beautiful, seafood is outstanding and swimming is great in summer. The southern tip of the prefecture (Boso Peninsula) is known for its warmer climate and greenery, as well as fresh seafood.
In apartment housing, I found that the rates for apartments for single persons range from 30 to 50 thousand yen in Chiba City proper, so if you are willing to be within 30-minute commute distance from the city, I think you'll find very cheap apartments there.
http://www.apamanguide.jp/kensaku/p14_CT1404_TN_SK_MD2.html
I also found a kickboxing/fitness gym located in Chiba City:
http://1duro.com/x/
HTH!