This is my first post so please be gentle! Did a search and couldn't find anything so thought this might be of interest to some people.
I had an email through today from CD-WOW offering a free top 75 cd (via a free £7.99 e-voucher) if you take out a free 1 month trial of their DVD rental service. It's linked to Lovefilm but I don't seem to have had any problems setting it up as I've had lovefilm trials before.
You need to add 10 titles to your rental list and receive the first 1 to be eligible and can cancel at any time during the 1 month and still get the CD/voucher. If you use the link it should enter the code CDSOL9 in the relevant box when signing up.