I hope we will get to see The Stone Killer get a DVD release one day. It's great that Rider On The Rain is finally coming out in September, after being delayed from it's original May release on Region 2 (source: the DVD booklet in I think the Electra Glide In Blue Region 2 DVD).
Some of my favourite Charles Bronson films are:
The Stone Killer
Death Wish (any of them really)
The Evil That Men Do (despite the DVDs of it being cut).