Programming - User to Advanced in lots of different Languages and scripting tools.
SysAdmin - Expert, but nearly all Windows based so unlikely to be relevant
WebMaster & Database - Advanced, but also Windows based.
And (at risk of posting outside the stated parameters), a lot of project management experience which may possibly be valuable.

Time available: average five hours a week (probably with occassional surges)

[ June 07, 2004, 22:39: Message edited by: Mark the Merciful ]