I'm presently an IT sysadmin in a financial services organization (company calls us systems support analysts and/or web systems engineers). I have been a systems admin for over 12 years. I am primarily focused on middleware though have no trouble supporting the entire OS and hardware levels. My expertise is on Windows with .NET applications and some BizTalk support. Also dabbled in WebLogic, some Linux work and am reasonably advanced with ConnectDirect NDM, just to name a few more products.
While I'm not actively looking I would definitely entertain new opportunities if they are too good to pass up. That includes those with a reasonable amount of travel - which would be up to 50% for me as a preferred limit.