You can get ClrMame from Roman Scherzer's page at:
http://titan.informatik.uni-bonn.de/~scherzer/

So how does this work?

    Make a directory with ClrMamePro in it.
    Unzip any of the following romset data files into your ClrMame directory.
    Point ClrMame to the lists (read the documentation to find out how)

*** Your best bet is to "Rebuild files".  This will go through your roms and zipped roms and rename/re-zip based upon the CRC of each file.  A simple scan usually is not enough and yields bad results because my filename and your filename probably won't match (especially if you've been using 8.3 filenames). ***

These are the console support files:

Atari 2600
Atari 5200
Atari 7800
Atari Lynx
Atari Jaguar
Bally Astrocade
Colecovision
Emerson Aracdia
FairChild Channel F
Intellivision
Nintendo - NES
Nintendo - GameBoy (classic)
Nintendo - SNES
Nintendo - Virtual Boy
Nintendo - N64
Nintendo - GameBoy Color (soon!)
Odyssey 2
Sega SG-1000 / SC-3000
Sega Master System (changing daily) (Use SMSFix to make your roms the correct size first)
Sega Genesis
Sega Game Gear
TurboGrafx-16 / PC Engine
Vectrex
X68000

And for arcade emulator support files:

CPS-2 - (not emulated yet)

CAGE - Classic Arcade Game Emulator
Callus
Cinematronics Emulator
E++
EMU
KEM - Killer Emulator
JAS- original
JAS- beta
JFF - Just For Fun
JUNO  First
Mage-X
Mapefer3
MGE - Multi Gauntlet Emulator
NeoRageX
New Zealand Story Emulator
PASMulator
Raine - (no longer necessary due to internal ClrMame support)
RAGE - Real Arcade Game Emulator
Replay
Replay+
Retrocade - v1.2beta
Retrovaders
SAGE - Superb Arcade Game Emulator
Shark! Emulator
Sideway
Sparcade v1.95b
Sparcade v2.25
System 8
System 16
Vector Dream
Xain'D Sleena Emulator
Xcade
XDragon
Zem

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I know, I've got a long ways to go, but I'm making progress.

Thanks go out to:

Dutch - For keeping me up all those nights while downloading.
Roman - For making ClrMame - the *only* proggy that works with long file names correctly.
Cowering - For pointing me in the right direction when I started this (and for the NES info, and Genesis stuff).
Snorter - For the Genesis list.
Kanze - For all the NES info, and some Sega lists, and answering all those japanese/kanji questions. :)
dps - The SNES info.  Now stop adding to it, already - I want to get caught up :P
Krool - The CPS-2 info (and Ptitfous - for that great list).
Kel - For the GameBoy list.

Proctologist - for hosting the original RomList Hotline server (where I got my Genesis roms)
The Scribe - for the Genesis Game Guide (among others)
Til (Sys2064) - for the excellent site and personal attention to visitors.
Ricardo Bettencourt - for SMSFix.
Nicola and the MAMEDEV team - THANK YOU! (can't say it enough)
#rareroms and #retrogamers - dammit! let me go to sleep one of these nights! :P
and to all the coders, hackers, dumpers, webmasters, and regulars in the emulation world...

Thanks, for letting me be a part of reliving the magic!

Other places to visit:

Genesis Game Guide Online (g3o) - http://members.xoom.com/generation13/
A Tension Span / Psychedelicacy homepage - http://www.users.ncfcomm.com/jgrimm/
Online SNES Guide (oSg) - coming ...

Get CRC32 for making lists...