Hope that this hasn't been posted recently, I couldn't see it.
The Magazine Group look like they have a sale on some of their magazine subscriptions. There are a few that look decent.
The Week 6 issues for £0.00
Computeractive 3 issues for £0.03 (nearly free)
3 Issues for £1
Health & Fitness (Womens)
PC Pro DVD edition
Computer Shopper DVD edition
SelfBuild and Design
5 Issues for £5
Digital SLR Photography Magazine
Games TM (3 issues)
Once the direct debit for the given price (£0.03/£1/£5) has left your account its recommended that you cancel the subscription and direct debit to avoid further money being taken out for future issues.
I've dealt with Magazine Group in the past and theres always been no problem in cancelling as long as the money for the 3/5 issues has left my account.