Re: Which qualifications are worthwhile?
Despite a long, long time spent working in the industry, I'm studying an IT degree with the OU at the moment and can recommend it.
One thing to bear in mind is cost. I'm lucky that I started just before the univeristy fees went up, so can finish my degree at the old rates. In common with traditional universities, the OU has more-or-less tripled its fees - meaning a full degree will now cost you £15k. Help is available, as are student loans so it's worth speaking to them.
The degree will take several years - though the fact that you're currently studying towards one could be a big boost to your jobhunting.
Good luck!