@jgweed,
I think the 'thankyou' function in this forum looks rather cool.
I'm not sure how reward and punishment in the context of utilitarianism is relevant to determinism (note if I somehow made it unclear, I'm a determinist, and as an utilitarian reward and punishment are clearly justified to the extent that they are the best way to achieve their goals, and as a determinist I think they might change behavior).
I'm now 24, which is old enough to look back fondly with nostalgia to when I was 18 and 19 and enthusiastic about Nietzsche, and the concept of the ubermensch, and I still understand the logic of the argument. However in the introduction to
A Theory of Justice (this introduction is the only Rawls I've read) Rawls argued that really Nietzsche and utilitarianism were fundamentally similar because they both involved optimizing something as the goal.
So perhaps a good way to think about utilitarianism is that it is fundamentally an optimization process, where you fiddle with the parameters and weightings, to decide just what is being optimized. And clearly classical hedonism doesn't provide a good 'thing to be optimized'.
This is why I find myself fascinated by what I understand to be Singer's satisfaction utilitarianism, because it provides something that works far more often as a usable 'thing to be optimized'.
Anyways I am familiar with Singer, although half from a couple of anthologized essays + the wikipedia page, and haven't read any of his books.