XP Pro SP3 on laptop, XP Home No SP on old laptop (reminded me of how Vista was), XP Home SP2 on Desktop, XP MCE 2005 on other Desktop, Cent OS 5 on Server A, Cent OS 5 on Server B.
I'm not sure what you mean by "Is there anything else".. There's a new OS coming out "Snow Leapord"..
I am using Windows XP at my desktop with 512 MB RAM and Windows VISTA at my Laptop with same 512 MB RAM. DON.
I have one laptop running Windows 2000 and dual booting Ubuntu, a second laptop running Windows XP, a third laptop running Vista Premium 32 bit, a fourth laptop running Vista Premium 64 bit, A MacBook running OSX 10.5.5. Then I have a desktop running Vista Premium 64 bit, and 32 machines at the office running every single version of Windows 2000, XP, Vista, 2003, and 2008.