I finished reading this a couple of weeks ago and found it really good. Usually i am not one for the whole spaceships thing, but I really enjoyed it.
This is how amazon describes it:
"Wealth ... or death. Those were the choices Gateway offered. Humans had discovered this artificial spaceport, full of working interstellar ships left behind by the mysterious, vanished Heechee. Their destinations are preprogrammed. They are easy to operate, but impossible to control. Some came back with discoveries which made their intrepid pilots rich; others returned with their remains barely identifiable. It was the ultimate game of Russian roulette, but in this resource-starved future there was no shortage of desperate volunteers."
Highly recommended!!!
I am about to start "do androids dream of sheep"