At 37, you're in the prime age range for most IT professionals, so don't give that too much weight. If you want to be a network administrator, MCSE or otherwise, Network+ is an excellent next exam for you to pursue. The more you know about networking in general if you pursue the MCSE, the better equipped you'll be to deal with a lot of the information related to that program.
I recommend A+ and Network+ as good general kick-off certifications for all prospective system and network administrators nowadays, no matter which platform they seek to learn after that.
This was first published in February 2002