Essentially, you are looking for a prosumer camcorder you can use as if it were a toy camcorder. And so there are problems in your search.
To start with, lights built in to a camcorders provide very little light. Beyond a head & shoulders close-up, they are nearly useless. But they still drain batteries at an alarming rate. If you need an on-camera light, you should be looking for actual on-camera lighting. Recent developments in using LED's for lighting has reduced the weight & power consumption of on-camera lighting. But they are far from cheap. And they still consume far more power than modern camcorders.
Now, provided you spend enough money, you'll have no problem finding an HDD HD camcorder with mic in & headphones out. But your estimation of the total recording time each night is especially vague. Do you need to record ten hours of video or is it just a half hour's worth of one minute clips? So there's no way for me to guess how many hours of recording time either your batteries or the camcorder's hard drive needs to have. Plus as far as batteries go, you'll also need a notion of how long the camcorder is on, but not recording. That may or may not be a factor in how many batteries you'll need.
Uploading to YouTube is not a matter of your camcorder, but a matter of software and compression. YouTube only allows up to one gigabyte per upload. The reason "net sharing camcorders" can upload directly from the camcorder is because they record video to an MPG4 compressed format. I've yet to see an HDD camcorder with the option of MPG4 recording, only inexpensive flash media camcorders.  So the files they record are comparatively HUGE. In order for them to be uploaded, they will need to be converted into a more compressed format or you'll spend the entire day uploading. I believe there is software that can compress then upload video to YouTube. Where to get it and how well it works, I haven't a clue.
Your requirement of direct uploading from the camcorder overrides all your other requirements. You have to decide between learning how to upload your own video or using a camcorder with an external mic & headphones. So make a choice and decide on the total time you'll need to record. Then let us know so we can provide useful advice.
