These are five 'walkthrough' videos where one of the developers explains everything along the way. I'm not into RPGs but this looks pretty damn good. And it's running on the Source Engine, so it shows you what other developers can do with the HL2 tech -
http://www.gametrailers.com/gt_vault/t_vampiretm_bl_walk1.wmv
http://www.gametrailers.com/gt_vault/t_vampiretm_bl_walk2.wmv
http://www.gametrailers.com/gt_vault/t_vampiretm_bl_walk3.wmv
http://www.gametrailers.com/gt_vault/t_vampiretm_bl_walk4.wmv
http://www.gametrailers.com/gt_vault/t_vampiretm_bl_walk5.wmv
178 MB total so don't bother on 56K.
http://www.gametrailers.com/gt_vault/t_vampiretm_bl_walk1.wmv
http://www.gametrailers.com/gt_vault/t_vampiretm_bl_walk2.wmv
http://www.gametrailers.com/gt_vault/t_vampiretm_bl_walk3.wmv
http://www.gametrailers.com/gt_vault/t_vampiretm_bl_walk4.wmv
http://www.gametrailers.com/gt_vault/t_vampiretm_bl_walk5.wmv
178 MB total so don't bother on 56K.