A little bit ago I picked up the Logitech G15 gaming keyboard, in addition to their G7 cordless laser mouse.
(I tell myself that I'll go out less, and instead stay in and play computer games if I have a neat backlit keyboard with an LCD display, and that it'll pay for itself after two nights indoors. I tell myself lots of things to justify purchases. I'm still out, just as much, despite the new toy.)
The G15 is pretty slick, although it took me a couple days to adjust to it. Honestly, I've only really used the LCD on it for displaying date/time, new email notifications, and the track name/producer on songs I'm playing. I also really like the built in media keys and backlit keys, but those can be had for a lot less than the cost of the G15.
The G7 however is by far the best mouse I've ever owned. It's cordless but has two battery packs that you can hot swap, and I get days of use out of a single pack. (It only takes 2 hours to charge.) The base unit that holds the RF receiver is also the battery charger, and they both run right off of USB - no extra wall-wart. The response on it is variable between 400 and 2000dpi, and it even lets you change the dpi response on the fly, via 2 buttons built into the mouse. (I tend to want much higher dpi and thus faster response when web browsing, as opposed to delicate photoshop work, for example.) The G7 isn't bluetooth, but instead it's 2.4ghz. Despite sharing a frequency with microwaves and 802.11x wireless traffic, I've had zero interference so far, and the response on it is amazingly fast - no lag whatsoever.
It's definitely a mouse I'd endorse, for anyone in the market.
-Pete