@ImaGetMines11
Yes, that was me on youtube

but those videos are WAY out of date. My case looks much nicer and I have the controller almost entirely installed.
Here's Ben's hacking book:
http://www.amazon.com/exec/obidos/ASIN/ ... icia017-20
I broke about 4 or 5 gamecube motherboards before I made that portable you found in the video. Now, that was because I was impatient, reckless, and wanted a smaller motherboard. I also broke about 3 disc drives, but that was pure recklessness
I got the controller and the 3.5inch screen wired on the first try. I got the disc drive relocated on the second try. I have technically not used a PS1 screen yet. BUT....I am using one for my second gamecube portable which is currently underground
Preliminaries
The whole process for me? Well, to be fair, I had done a little modding before I came to BenHeck. My very first time soldering, I added an external PS2 joystick to the PSP. Ironically, this method was created by none other than Ben Heck. I had no idea who he was at the time though; I was just doing what he said

. I then added a "ViperGC" modchip to my gamecube. I was so scared of breaking my gamecube at the time
Wishful Thinking
One day, I was playing my Nintendo DS and started wishing I could play Metroid Prime on it....lol. So I started google portable Gamecubes to see when Nintendo would come out with the next gen handheld. I then found some portables made by people from this site!!! But, I felt like they were all to big to really enjoy. So, one day I decided I would make one my own way and have it be the smallest one ever made. This was back in April of 09, right after my girlfriend dumped me
Reading
For the first month, I spent my time reading EVERYTHING on this website. And I mean EVERYTHING. Plus I had to save up to get supplies so its not like I could do anything else. I read Kasar's guide probably 50 times before I actually started soldering. Then, I slowly tried to follow each of Kasar's steps....one by one. I wasted about two months trying to make the motherboard smaller.....but I learned a lot at least
De-noobification
I felt lost in the woods for a long time. For a while, I was just mimicking what this site told me to do. "Do now, understand later" Things finally started to click for me in August 09 when I successfully soldered a 3.5" screen to the gamecube motherboard. The real trick, though, to portablizing is persistence. Each time something didn't make sense, I would google it. That helped me learn about video types, series/parallel, and circuitry in general. The point when I no longer felt like a noob was after I successfully relocated the Disc drive (including extension cables and other crap). After that, I didn't feel lost and could figure things out on my own.
In many ways I am still a noob, but I have a method down that works pretty well. And I am obsessed with trying to make the Gamecube as small as possible. I'm not kidding either: like I would spend hours at night mapping out case designs and spots I could cut on the motherboard. Yes, I had most of the motherboard mapped out in my head!!
I think I blabbed for long enough. Hopefully this was useful and not just tl;dr