I, too, have been looking into another keyboard. The G15 was highly recommended by a fellow DoD clan member. He said he uses one, which surprised me. He's in his 40's! He loved the backlit keys and says the LCD is great. I love the Elite that I have now, but the times they are a changin'.
The size is the biggest turn off for me. I've seen it in stores and it is a BIG keyboard. I thought the Elite was large, but the G15 shows it up. Like you mentioned, Greg, I'm not sure how fuctional the G keys would be for a fps gamer. I'd be nice to see a version without them. Do you know where I can find a list of games the G15 already supports?
I normally play in a dark environment to reduce glare etc. This has caused problems with me hitting keys and accidently killing, kicking, and slaying people. I accidently kicked another admin on the server last night because of it. I have looked at the Eclipse by Saitek, but I love the functionality and controls that Logitech brings.
It's great to see the site reviewing a good-looking, promising keyboard like the G15. It's definitely something I'll keep on my list.