Public Library?
Grapeshot has an idea i beleive that can be expanded on. Cycling systems to 'try them out'. There are tape traders of live shows (all legal mind you) where one man makes a list of people who want to join the tree. Each person makes 2 copies of the show (remember this is legal to copy b/c its live stuff) and sends the master to the next in line, postage and shipping included.
I propose a list of people to try out the book for 1-2 weeks apiece. This should be limited to main systems (d20 / Hero...) / campaign sourcebooks (Kalamar, etc..) as a way to introduce new systems by means of a personal (as opposed to external) review.
I for one cannot afford to buy a new book, and even with raving reviews from everyone a system might not fit my personal tastes, however i am always open to new stuff and crave it from time to time. Perhaps another thread titled "EnWorld Public Library" with tracking of who has what, and who wants what when would be more appropriate than hijacking this thread.
Its amazing how a 2 sentence reply can evolve into a full fledged idea as-you-type, eh?
Oh, and about the H.A.R.P. book, I really dont care who gets it, but it would be nice if this idea takes off.