Cheapest I found here was 29£ at play.com this is cheaper at dabs.
Delivery may be £3.50 but you may find free deliver offers.

Logitech Harmony 515 advanced universal remote simplifies your home entertainment, replacing up to five remotes with one - reducing clutter and complexity in your living room. One-touch, activity-based control turns on the right devices in the right order- getting you to your entertainment easier and faster than any other remote. And the interactive LCD with help function makes it easy for everyone in the family to use. Supporting more than 225,000 devices from 5,000+ brands, you can be confident the Harmony remote can control whatever entertainment devices you have today or buy tomorrow.

£26.98

www.dabs.com