Here is a roundup of the costs I had when building this arcade (to the best of my knowledge). Of course, some of the tools were purchases such as a router and bits and a jigsaw that I plan to use for many more cabs, so not going to include those costs.
$200.00 CABINET (Metal Slug X w/ working 25" monitor)
$39.00 IPAC-2 (Control Panel Keyboard mapper)
$21.00 Arcade Monitor VGA breakout cable/amplifier (converts RBG to VGA and boost power)
$89.00 ArcadeVGA PCIe video card
$120.00 DELL GX260 w/ 1 gig memory and 1 TB HD
$87.00 Marquis and Overlay (gameongrafix.com)
$83.00 Happ trackball (backlit) and mounting Plate
$23.00 Rustoleum 7777 satin black paint and rollers etc.. for cabinet paint
$16.00 40 ft 3/4 inch light blue tmolding (for both CP and Cab)
$17.00 Clear Lexan for protecting CP (better than Plexeglass)
$39.00 2 joysticks and 22 buttons (black and blue)
$35.00 screws, cp hinges, CP 24gauge wire, clips
$13.00 Primer for CP and Cab
$13.00 300 grain and 1200 grain sandpaper
$9.00 1 sheet MDF wood
$7.00 white flourescent light for marquis
$8.00 power supply
$29.00 Logitek 2.1 speakers and sub
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$848.00 TOTAL
The next one I build should be a lot cheaper because I still have alot of the supplies and things, but if you count the tools and bits I had to buy, this MAME cost me around 1050.00 or more.
Gam3rsmurf