Sure, I shoot loads of film. I have an EOS 3 and an EOS 5, both of which take EF lenses just like a modern EOS camera. And the flash works too...
The EOS 3 in particular is a fantastic camera - full frame (of course!), eye control focus, weather sealed, 8 fps, a real delight - and all for about £100 or maybe $150, on eBay !
I use a Nikon negative scanner, and then Lightroom 4 and Nik plugins, and have all the joy of digital post-process workflow...
Maybe you can the same effects with digital, and I do use a DSLR too, but somehow, you just KNOW that you have black and white film in the body, and it somehow alters your perception. Likewise, a bit of Fuji Velvia 50 for landscape or Portra for portraits. Superb.
The thing is, with 36 exposures, you have to THINK about what you are doing.
I also have a Mamiya RZ67 (medium format, 6x7 negative), which I use occasionally, but not so much joy with that yet - much tougher to use, more demanding, and harder to scan well. Manual focus, manual exposure, and a beast to lug around. I'll get there one day...
Aiming for a 5D3 later this year.