I just finished my 2nd NESp today, it's substantially larger than my first because it uses an original NES instead of an NOAC. I've had it laying around mostly finished for months, but didn't get a battery for it until a few days ago. I added a few features that weren't in my first, such as 1st and 2nd player controller ports, LED's for the backlight, a clear case, and a built-in rechargeable battery (2000mAh Ni-Cds, which aren't great, but work okay), but I didn't put in AV output (though I probably will later). It's currently taped shut with electrical tape, I'm hoping I'll be able to find a better way to hold it together later. Unfortunately, I was only able to use RF for the screen in it, so it gets interference at times and the sound was so terrible that I decided to attach the speaker directly to the NES with no amplification. It works well with headphones, at least. Anyway, here are some pictures:
Front:

Top:

Back:
I'll probably put up pictures of it running tomorrow after the battery recharges.