Note: This list is in no way ment to be a complete list.
It is a list of sites I found usefull when building my cabinet.

Info about building a cabinet

Saint's Build Your Own Arcade Controls FAQ
Arcade@Home
PC and Console to Jamma Project

Programs and Utils

ArcadeOS

MAME

Usefull messageboards and newsgroups

Saint's Messageboard
Arcade@Home messageboard
ArcadeOS messageboard
rec.games.video.arcade.collecting

Buying a cabinet and parts

EBay: Collectibles / Coin-operated
rec.games.video.arcade.marketplace
Hagstrom Electronics
Happ Controls
Video Arcade Game Collectors WebRing
UltiMarc

Networking under DOS

J Helmig's pages

Examples and more links

Arcade Cabinet WebRing