That link seems to refer to setting up an x86 mini-ITX motherboard and 
hard disk inside of a dreamcast; they're merely using the dreamcast 
shell as a novelty case.  A more informative link might be 
http://dcdev.allusion.net, which was linked to on slashdot awhile back 
(see http://slashdot.org/articles/02/04/28/019244.shtml?tid=137).  
Unfortunately, at time of writing the webserver seems to be down, and I 
couldn't find a google cache to the actual webpage.  Perhaps the author 
is attempting to use this creation as his webserver. ;)

-Nik

On Monday, July 7, 2003, at 09:52  AM, Alex Kirk wrote:
> Philippe,
> I can't tell you precisely what kind of interface it is...but I know 
> that you can hook up a hard drive. A Google search of "Dreamcast hard 
> drive" turns up some good stuff, including this HOWTO of hooking up a 
> hard disk:
> http://mini-itx.com/projects/dreamcastpc/
> Hope that's helpful.
> Alex Kirk
>> Hi, I'd like to know what is exactly the type of interface that 
>> connects the
>> GD-Rom drive to the Dreamcast's motherboard. 
>> http://mail-index.netbsd.org/port-dreamcast/2001/01/21/0004.html 
>> According to this link, it's some kind of scsi device ? would it be 
>> possible
>> to use another scsi device .. I.E. a harddrive ? If you could just 
>> lighten
>> me up a bit i'd be happy =). Thanks,
>> Philippe