The MX400 is nice; tactile side buttons
Mouse technology has got to a stage where even a cheap mouse like the Logitech RX250 can beat the best mice of yesteryear...What kind of feet do these have? IMO it's got to be teflon (PTFE), the plastic ones don't really cut it. It took me a while until I had those on my M-BJ58 attached firmly (lost feet were a common problem on this kind of mouse), but it slides easily on most any kind of surface.
I would choose whatever is most comfortable with my mousing style. I use the "claw" grip, so I generally go with a medium-large sized, symmetrical mouse.
I can use any kind of mouse, but I prefer trackballs for everyday use. I don't know why, I just do.I have always preferred them too. Didn't even go through an "adjustment period". It was instantly natural to me.
The one on ebay is nearly IDENTICAL to that one you pictured. Even has the same special mouse-pad!
I think I saw the one you are looking at. Be warned - it is missing the power adaptor it needs.
I found an early optical mouse lying around in college, made by the company that invented the optical mouse. Problem was that they need a special mousepad (which wasn't with the mouse), the connector was Sun only and the thing was small and uncomfortable. Basically it was crap in just about every way.Show Image(http://upload.wikimedia.org/wikipedia/commons/5/5d/Dsc_6691-ret.jpg)
yes, the g9 is kind of gimmicky and gamery, but really it is a great mouse. the way you can make the wheel free-spinning is great, i only change it back for games... free scrolling long pages is so nice, instead of grinding your way down the page, you just flick it to start, and then stop it when you want.
Seriously, the Microgear wheel makes it a great "daily driver" mouse. The Razers, Sidewinders, Steelgears and others are fine gaming mice, being able to spin the wheel gives it an edge in daily use.
I had one of those a few years ago, (complete workstation actually). Too bad the 21" monitor crapped out.