a good one is the razer lycosa.. but its not cheap and wouldnt recommend it if you use the keyboard excessively.. eg 2-4 million key presses a year excessively.. i have one now a lot of the covers on the keys are worn off..
My own experience/preference: I like the key letter that is lit, and not the background of the key board. When the whole background is lit, it can be a pita to see the keys if you peck at them like I often need to.
I like my old G15. It's a lot more than just a lighted keyboard though, which may be good or bad for you. You might be able to find a decent deal on eBay for a new or gently used one.
The Logitech Illuminated keyboard is superb. I've tried just about every lighted keyboard on the market and think the Logitech is the best by far. I wish I could find a Logitech mouse I liked as much.