Hey guys, the online section was getting crowded with sticky's so I decided to consolidate all the connection guides into one post!
Raspberry Pi PC-DC: DreamPi 1.1 Released - with Dreamcast Now!
Netopia Dial in Router Guide: New method for connecting Dreamcast!
Mac-DC Server Guide: viewtopic.php?f=3&t=5595
PC-DC through Virtual Machine: PC-DC server on Vista/Win7/XP etc. (Sort of)
PC-DC Server Linux: viewtopic.php?f=3&t=1160