So I was desperately looking for a white mouse to go next to my white keyboard and white case and found the Steelseries Ikari High Performance, which looked good, I'd had good experience with their ZBoard keyboard half a decade ago, and it really catered to my fanboyism of Neon Genesis Evangelion
The other thing is its a mouse that has very little presense in e-tailers, and in review sites, so I figured I'd weigh in a bit on my thoughts
1: The included software is totally optional and I completely ignored it
2: The default 'low' sensativity is great, very similar to how my MX518 felt, while the high setting is crazy fast (too fast for desktop use at 1680x1050) - you can alternate between the two with a button just below the very good feeling scrollwheel, which was good when experimenting with it in skyrim
3: THere is a very nice/comfortable rest for your ring finger on the mouse, which has a groove thats for your pinky, but can also be used for your thumb if you're left handed (or ambidexterous like myself) and decided you still had to own a pretty white right-handed mouse. The ring finger rest is essential because...
4: The buttons are crazy sensitive. Especially the right click button. In my first hour or so with it I accidentally right clicked while navigating WAY too often. Now I dont do it so frequently as I use my ring finger as well to move the mouse.. which is a very satisfying and precise movement and very intuitive after maybe ten minutes of realizing 'maybe I should try not right clicking every time I move the mouse to the left'. When actually depressed, the buttons feel firm and give a satisfying click.
5: Some users have complained in online review sections the thumb buttons are placed badly. I disagree and found they are more or less in the same place as on the MX518, though they feel more like the buttons on my old Razor Copperhead.
Any questions about a mouse that hasnt gotten much coverage I'll be glad to answer. Now someone point me towards a decent white-bezelled monitor ;p