I used to use MS mice and keyboards but have found over the years that they can be a bit iffy regarding quality, they always look nice but after a few weeks they either quit working or seem to require unplugging/replugging (rebooting) every few days or hours and then quit working altogether. I also found that the early big wireless USB keys were annoying to damaging. Then I found Logitechs ittle bitty USB keys, at first one per device but now they have a unifying key that works with up to six devices per ea, now every computer I own has one of the keys and one, two or three devices connected. They just work and the software for managing the devices and the key system is simple intuitive and again just works.
I just bought my second set of wireless mice + Keyboards this evening, an M525 mouse I got for 24.99 and a K360 (compact) keyboard (29.99) to connect to my old ThinkPad T42 that I have just dual monitor connected to my big DELL 24 in monitor sharing it with my DELL psuedoUltrabook from work. My work setup has a M515 mouse on a unifying key and they don’t bother each other a bit.
By the by, Dells are inexpensive but solid, easily managed machines for the working drudges in the world (like I me when thinking for a buck) but I bought a Leonovo ThinkPad for myself and my writing habit. While I did not go overboard on hard drive (and maybe should have) I did put in a big dollop of main memory and paid for the upgraded graphics. Those splurges plus the inherent ruggedness of the ThinkPad have served me well. I have typed many hundreds of thousands of words on the world class keyboard (the A key plastic is word down so its ridged and the graphic has worn off) but it still boots up faster than any of my Dells, XP is still rock stable and II still love the trackpoint mouse knub in the middle of the keyboard. It’s lighter than most of my Dells up until the latest little devil and the 14 in conventional aspect screen is better for a writer than the movie slot screens that are so popular today.
So anyway, there you have it, Logitech rocks, Thinkpads rock, Dell has its place in the scheme of things.
Cheers out there