Some space links I thought you might find interesting.
One next generation launcher systems
http://msia02.msi.se/~lindsey/RLVCountdown.html
http://www.affordablespaceflight.com/nasa1.html
http://www.affordablespaceflight.com/home.html
http://www.reston.com/nasa/launch.html
On Space Access' specific design
http://www.wtn.org/crda/payloads.htm
http://www.spaceaccess.com/
New, more practical, partial skyhook like design
http://www.affordablespaceflight.com/howitworks.html
Great quotes
http://highways.net/affordablespaceflight/quotes.html