some tweaking needed
Bought my MX1000 here in CA at Fry's for $75 (eBay has it for $59 on some good days, but there were some battery failure rumours, so extra $16 is about the right price for no-hassle 30-days long up-to-5 times replaces)
I don't do any gaming, at least of an action kind. What I really do is a lot of precision cursor pointing for digi-photography retouch & touch-ups, other art work on 2048x1536x70Hz Sony calibrated 0.194mm/trixel pro CRT monitor. It translates into 131dpi very fine-grained display, or even 152dpi when on my Dell Inspiron UXGA laptop.
MX1000 really shines in this demanding environment, and outperforms any competition, including even graphic tablets' pro 1200dpi mice in the >$150 price department.
That being said, there's some points.
1. Logitech manual should stress more the necessity of eradicating any traces of previous mice drivers from your system. My cleaning up routine included using regedit, to be on the safe side. In Win98, there's still generic old (1999) Microsoft's VMOUSE.VXD and it should be present (or I don't know how to replace it with whatever Logitech may offer -- if any), so there's excessive blinking present on some mouseover objects, and possibly some other debilitating features may linger.
2. USB 1.1 support in Win98 is a sad, silly joke, so I use PS/2 port instead which is fine with sample rate (by ps2rate utility) of 125Hz (mouserate displays anywhere between 100 and 501Hz, but fixing the samplerate on 200Hz didn't work with my old ASUS mobo) Need to switch to WinXP/new mobo, as it's only there there's a possibility to go to ~400Hz of samplerate, plus order a 300 or even 400 for a sample buffer. This is what determines a true 1200dpi lightning-fast pointing device.
Must be a real champ for gaming, too, no Razor can ever touch it.
3. Need a newer than 20.11.459.00 build SetPoint soft/drivers: to make Back/Forward buttons work for all my IE/Opera/Firefox browsers, it took "Keyboard assignments" of "alt+left", "alt+right". There's also no freedom of assignment for tilting a scrollwheel -- I'd prefer it be "Back/Forward", I just don't do much of sideways scrolling. OK, maybe will test "CruiseUp/CruiseDown" as available forward/back assignments, as per yet.
4. Mechanical issues:
a. I'd prefer lighter buttonclick efforts, anyone knows about successful modding (weakening the springs, cutting the springy cover, etc.) for these?
b.Positioning of back/forward/appswitch on upper left side (over my thumb) is not of my liking, I'd prefer old Logitech MouseMan's bottom-of-the-groove position.
c. It's true that enhanced optical precision makes MX1000 more indifferent for quality of mousepads, but I made my experiments with many sorts of those: leather, fabricks, high-grade plastics, rubber-plastic composites, and metals. The best so far, IMHO, are fine-brushed/anodized aluminum sheets of ~2mm thickness, though you'd need to stick some high-grade (very slippery) teflon stickers on your mouse's feet, as them are quite scratchable low-class China plastics. In any case, the more slippery surface demands lighter efforts for clicks, or pointer "slips" may occur. So, again, has anyone any experience in modding button switch springs on Logitech mice?
Thank you.