Build a slim style. like this:
http://forum.arcadecontrols.com/index.php?topic=103430.0;topicseenor this:
http://forum.arcadecontrols.com/index.php?topic=55789.0Then just start building. If you are going with art instead of staining, its a WAY easier build since you can just hide your mistakes and fill and sand and screw everything. If you go for a stained cab, you have to be much more careful, since everything is going to be visible, that means you have to miter joints, fasten everything from the inside, cut your wood carefully to minimize chips and splinters. The advantage of a stained cab, though, is that it looks more grown up, and is usually easier to integrate in your house as it looks more like furniture than frat boy paraphernalia.
The way I approached it with my wife was as follows (BTW, we both work, I have a 20 month old and another on the way):
Do you have your pc? Do you have your monitor? Do you have your buttons and interface?
I would say the way it goes is like this:
1) Set up your mame pc and software. Show your wife how cool it will be, get it all set up with the roms, the emulators you want, the front end looking nice. This is also the cheapest way to go. You can get a mame adequate pc for anywhere from free to 100 bucks.
2) Go through the hall of fame projects sticky under project announcements, bookmark a few projects you like, show them to your wife, ask her which ones she likes the best. Then you know what you are going to build. My wife bought in under the condition that it had to be a slim cab and it had to be a stained cab. I think a slim cab is pretty much the way to go, especially if you are going to use an LCD anyway.
2) Build your CP. You will have to do this eventually. Then you can show her how cool its all going to interface. Let her play a couple of old games, every person went to pizza with their family and played arcade games there when they were a kid, ask her what she used to play when she went to pizza.
3) Collect your tools, set up your work area and start working. Take your time, its going to take FOREVER, don't expect anyone to help in your construction, and plan on only working 2-3 hours a week on it realistically. I do most of my work in my garage late on a friday or saturday night after the fam is asleep. Don't trade family time for cab time. The wife will get pissed, she will think that you care more about your stupid arcade box than you do about your family. Babies are awesome, they grow up fast, you work so your time is limited already. This is going to be done in your lack of sleep time, not your free time, your free time will be spent with your family.
IF you need any help on putting the darned thing together, or advice on parts, let me know.
good luck!