CanadianSchism's Journal: IT Generalist looking to change it up, career-wise

So, I've been in the public sector for the past 6 years. I started off doing my work study in web design and a bit of support, eventually going through the interview process to fill in a data processing technician post, and getting the job.

The first four years of my work life were spent in various schools, fixing computers, implementing new hardware, rolling out updates/ghosting labs, troubleshooting basic network and printer problems, etc. I was eventually asked to work on the administrative information systems with an analyst, which I've been doing for the past 2 years. That's consisted of program support, installing updates to the pay/financial/purchasing/tax/energy systems, taking backups on SQL servers, etc.

I've never had the opportunity to take time for myself, and jump back into my first love: programming. I've picked up Powershell books (have two here at the office), but haven't gotten anything down yet, as there are always other projects that come up and whittle my attention to learning a language down to zilch.

This new year will see a change in that, however. I'll be setting aside an hour every day to devote to learning a new language, in the eventual hope that I can leave this company (take a sabbatical) and hop into the private sector for a few years. I'd like to do this for a few reasons: I'm feeling stagnant and bored in this seat, there's no upwards movement, I really want to program but I can't in this job, and finally I'm making about 20k less than what I should be.

My question to you all is, what language should I start with, to learn and get back into the principles of programming, that will help me build a personal portfolio, but will also lend to learning other languages. At this point, I'm not sure if I'd like to make/maintain custom applications, or if back-end web programming would be more interesting, or any of the other niches out there. I'm just having trouble taking that first step, as there's so much.