Roundeye,
I lived there for one year and here are my recommendations.
Hotels
For high-end you can pick the Crowne Plaza or Hangjue, especially the first one is right in the middle of town. I had convenient company rates so I'm not sure how expensive they are... but you can give it a try.
In case you want something in the industrial zone I definitely recommend Guoxin hotel.
In Hanjue you have a pretty famous KTV on the 4th floor, you can usually bring girls to your room. If you want a massage with HE or more (and you prefer to check the girl first) take the elevator to the last floor (14th or 15th I don't remember) and then take the stairs for one more floor. Once you reach the top you will find a guy that speaks a few words of english. For a massage with HE you should be able to bargain down to 300 rmb, good luck.
In Crowne Plaza you can get a special service only in the massage parlour which is part of the hotel but managed by an independent company. Just ask for a special message, but it will be rather pricy (700 rmb I guess).
in Guoxin just go to the massage area, they are very explicit in their offer so you won't need further guidance from my side.
Bars
The Doors is probably the best one left, all the others I used to go to are now bankrupt (probably because I left town!). For a more Chinese experience you can try the Royal One (or a similar name, not 100% sure...) which is also a KTV with girls you can bring home.
Clubs
Downtown you can check SoHo, probably the best one and always full of people, even on week days. There are some other new ones but I don;t know the names. In these places you will find lots of local girls but no working girls / freelancers.
Dodgy Clubs
Boss Club - but I'm not sure if it is still open. Else just pick any of the KTVs...
Hope this helps.
Panofsky.