I'm beyond jealous. You did a great job! I'm seriously considering having one last attempt at making a cab, possibly using the plans i sketched out using vigo's outline. I just really wish i was a better woodworker and most importantly, had better tools.
Pretty sure you can add a full atx motherboard, hard drive and power supply in the back without any issues whatsoever. I also agree with Nephasth, the schemes also do have a tinge of taito retro in them. I'd rock just about any of the color schemes.