No, jno, I wouldn't recommend a dose of flue to anyone. It was the enforced rest which, fortunately, did the job. It's a very hard thing to take rest like that when you have to work with the equipment every day, though, and so surgery may be an option.
Lisa, have a look at some of the equipment here:
http://www.online-ergonomics.co.uk/
As you'll see, some of it's pretty expensive, so I wouldn't recommend going out and buying what you think might be the answer - it may not be. But at least you'll know what's out there if you do need anything.
Until you get some professional advice, try to make sure your working posture is correct, chair heights/depths etc. set properly. You should also take frequent breaks from your PC every twenty minutes or so. Sit back and stretch, open your post, go a for a loo break, make yourself a drink or whatever. I was also advised to position my printer and phone such that I actually have to change position and leave my seat respectively in order to use them. Doesn't just help the CTS, but keeps your whole body healthier too.