MX900 vs MX518

[Sathsayin]

I have this Keyboard

I wanted to buy this mouse to go along with it!

I don't like the mx518 gun metal bent up crap but i heard the mouse is excellent ergonmiclly so i went to best buy and felt it and had a thumbgasm!! wow
so I looked and all i could find was a red version at target. I felt it and it doesn't fell as good as the one at best buy. Something was diffrent about the top surface
Then i stumbled onto this.

Then to make things better my wife liked my keyboard but wanted a matching mouse I surfed around and bam here is this combo! My keyboard in a wireless version with the mx900 what a deal!

I see them on ebay and I want to know the diffrence besides being wireless (bluetooth)
are the diffrences. Do they feel diffrently etc... I can't find any specs on the mouse! except it looks just like the 518 with a better top! Please help me before christmas! I know the keyboard will be fine except the mouse unsure about it and this is where i need help pro's and con's(except for wireless that is a given)

edit: Update i see there is a mx700 as well as a mx900 but i can't find the mx900 except in this ebay listing! what are the diffrences between these 3 mice! and are they almost ergonmicly like the mx518 I know the mx900 is real becasue of this pic

 

[tiraides]

All three mice are based off the old MX500-series design, so they pretty much have the same shape and feel. The only true differences between the MX518, MX700, and MX900 are the "cable" -- the MX518 is wired, the MX700 uses RF wireless, and the MX900 uses Bluetooth wireless (which can connect to any Bluetooth receiver, not just the one it comes with) -- and the resolution -- the MX518 can adjust between 400dpi, 800dpi, and 1600dpi, but the MX700 and MX900 only use 800dpi.

However, the MX900 and the Cordless Elite Duo both have been discontinued for several years now. The used condition of both the MX900 and the Cordless Elite Duo also brings to question the possibility of long-term reliability issues -- you just don't know how long that they'll last. The counterpoint to that is the fact that both wireless mice use rechargable batteries that can still be found at stores (like Radio Shack, yes, but still...).

I've used both the Cordless Elite Duo (I've owned one a few years ago) and the MX518 (I just bought a new one a few months ago, to replace my old one) and I liked them both. However, since the MX518 can still be found in stores today, I suggest going with that mouse.

 

[Sathsayin]

ok thanks for the info.I think im going to get 2 mx518's and 1 more elite wired. New if i can thnx for the info.