So I'm finally building my Mame cabinet and I've been slowly doing research over the last 4-5 months. I've gotten nearly everything I need but I wanted to go over my list of supplies with you guys to see if I'm missing anything.
It's a 4 player cabinet with a primary focus for fighting games.
I have:
A decent PC running XP
1 IPAC4 from Ultimarc
1 ArcadeVGA PCIe from Ultimarc
2 Happ Perfect 360s for 1p and 2p
2 Happ Ultimate sticks for 3p and 4p
A tonne of Happ buttons
and hopefully this week I'm ordering a Wells Gardner 27" D9800
I'll worry about speakers later on.
Once I have the monitor I'm building my cabinet instead of refurbishing a used one. I do CNC work for a living and have unlimited access to some fun, expensive toys.

Am I missing anything? Any advice from you pros would be welcome.