I dabble in Turbo Grafx/Duo hardware and games, Neo Geo Pocket, and Neo Geo AES and MVS.  I'm also making SuperGuns for playing arcade PCBs.  Occasionally something else may slip in there too.

• Superguns - Many models and options possible....

• Turbo Grafx, Duo, and PCE Hardware
• NEC Controllers - wide range available pads
• NEC Accessories - Taps, memory units, boosters, etc.
• Turbo Grafx and Duo Software
• PC Engine Software - HuCards, CDs, SCDs, and Arcade CDs

• Modifications for Turbo/PCE hardware
• Modifications for Sega Genesis/CD hardware!

• Neo Geo Pocket software and hardware
• Neo Geo AES and MVS (including kits!) - and some random Neo hardware (controllers, etc.)
• Miscellaneous

I also buy MVS kits and Turbo Grafx/Duo/PC Engine collections!!!  Please check my Buying page for more info.