I concur with NovaCoder: Subway and FastATA are for heavy users, not for gamers.
Your best choice is the Indy, a Compact Flash PCMCIA reader (or a SD/5-in-1 memory card PCMCIA reader) and maybe a Surf Squirrel with the companion SCSI CD-ROM for CD32 games (remember to grab a CD32 joypad or equivalent!).
Hours/days/months/years of fun!:D
