As others said, there's nothing that fits all those needs.
If you really want an ereader now, I'd suggest doing what I did last week. Buy a used Kindle 1 locally on Craigslist. I scored one about 5 months old for $200. The price is right and it will fit my needs fine for a few years until their are fancier readers out at lower prices. The go for cheaper on Craigslist than Ebay (closing in the $230's and the cheapests last week) and you have the advantage of being able to meet and check it out before forking over the cash.
The light thing always makes me curious. Do people not have lamps?
In all my years of reading I've never once owned a book light. Just read by the lamp on the couch/chair/nightstand by the bed etc. I guess I could see it for married people wanting to read in bed while their spouse is sleeping or something--but I'd just read in another room and go to bed later.