See http://forums.mtbr.com/showthread.php?t=146030. Apparently, some Cane Creek Cloud Nine shocks are available for $169.
After some poking around at http://www.ebikestop.com/ (and several other sites to figure out compatibility), it appears that several of the Cloud Nine shocks for sale at that site have the correct eye-to-eye measurement and stroke length for use with 2003 and 2004 Hollowpoints. I'm guessing that the mounting hardware (reducers) won't fit, though depending upon their size, it may be possible to adapt them. After looking at the reducers on my shocks, it appears that the reducers used by Fox and Cane Creek are compatible, but that those used by Answer/Manitou and Cane Creek are not. So, depending upon what type of shock you currently have on your bike, you might be able to use your current hardware.
Anyway, I thought I'd pass this on for those of you considering a Cloud Nine for your Hollowpoint...
After some poking around at http://www.ebikestop.com/ (and several other sites to figure out compatibility), it appears that several of the Cloud Nine shocks for sale at that site have the correct eye-to-eye measurement and stroke length for use with 2003 and 2004 Hollowpoints. I'm guessing that the mounting hardware (reducers) won't fit, though depending upon their size, it may be possible to adapt them. After looking at the reducers on my shocks, it appears that the reducers used by Fox and Cane Creek are compatible, but that those used by Answer/Manitou and Cane Creek are not. So, depending upon what type of shock you currently have on your bike, you might be able to use your current hardware.
Anyway, I thought I'd pass this on for those of you considering a Cloud Nine for your Hollowpoint...