I love mice. I really do. It's basically physical contact between you and your computer. And you constantly keep in touch with your mouse, so why not get something nice for yourself?
Enter the MX1000. At first, it looks big and gaudy, but first impressions aside, it's quite well designed. It's on the heavy side of mice, and if you're used to a lighter mouse, it could take some getting used to. I've had it for about 2 years now, and whenever I use lighter mice, I just find myself flinging the cursor around the screen. I feel the extra weight, with the smooth glide provides good enough accuracy to not have the mass be an issue. Also, its a much 'taller' mouse than usual, but I find this gives somewhere for your hand to rest, so you're not just pushing a mouse around with your fingertips, like I find with smaller mice.
This mouse uses an 2.4ghz RF transmission, so the reception is quite good. In fact, upon the slightest movement of the mouse, the little battery light turns on and movement is virtually immediate. Whatever those lasers do down there, its working. And there is no lag like I've experienced with the MX900 (which is a solid BT mouse for the business crowd in its own right). This quick reception doesn't tax the batteries as much as you would think. With normal use, the embedded lithium batteries only need charging about once a week. If you're a hardcore gamer, every three days may be a more realistic period, so you'll have to schedule those 3 hour full charges in between sessions. The mouse automatically turns 'off' after 5 seconds of non-use, but springs back instantly. This is a clever way to save energy and it clearly works.
Now for some tiny grips (keyword: tiny). At first the heavy mouse does take some getting used to, but its a learning curve well worth it. Also, my mouse after two years of steady use has shown some aging. The logitech logo on the back no longer has the logitech text as it has worn off, just leaving the graphic. This doesn't affect its functionality in any way, but if you're picky about that stuff, who knows. Also, when the battery eventually hits a critical level, it will pop up a little box in the corner that constantly tells you your battery life is low. It gets annoying as it kind of lags my computer a bit. And when you do charge it, make sure it shows the bars charging, cause sometimes the contacts don't sit JUST right.
The buttons involve a scroll rocker above and below the scroll wheel, and a forward back for the thumb, as well as a button in between the forward/back buttons. I find I use the scroll up/down 'click' for larger scrolls, and the wheel itself for more precise scrolls. The back/forward are second nature to me now, but I hardly use the button between those two, but it is easily pressed by the thumb. The scroll wheel has the standard button push as well as left and right rocking, which is pretty cool. Unfortunately with all these buttons, the Logitech Setpoint software is lacking in functions to use them with. I personally use uberKeys to set them to my own desired functions. Try using left and right scroll as next and previous track for your media player. Ingenious? Yes, I know. If only Logitech would listen up.
This mouse is a generation old, as the new MX Revolution is out. I've found the Revolution has a little less 'bulk' but is just as solidly made as the MX1000. If you can find the MX1000 still, it would be a solid purchase regardless. It doesn't have the restricting cord as my old mx500, the lag of my mx900, and it is a solid performer, if you're looking for a high end mouse with everything you need.