Use Ilford Delta 400 (this is not a colour negative B/W film). Very nice grain.
I wonder why so many of you recommend jinn the colour processing negative B/W films. They look really awful when developed.
Jinn, you can use the true black and white films, process them as B/W film, then do the prints on color paper. Ruby Photo does a good job of that, very close to the real B/W photos. Of course nothing beats real prints using B/W papers.
Yes, B/W photos are very personal choice, and the photos are great. I did a wedding shoot using some B/W films and I love them. BTW, you should process them yourself or the photographer himself.
BTW, just get the tanks and chemicals and develop them at home. All you need is a pitch dark room and you are ready to go. The "dark" room is only used when you need to put the film in the tank. Once that's done, you can switch on the lights. Or you can buy a changing bag as someone had suggested. But if you are not experienced, get someone who are to do the job....or else you may regret if things go wrong.