MLRS Books is offering a discount on orders of their books from now till Sunday.
From their announcement:
To compensate for the UK budget and the general malaise in the world, we are offering 25% off all books ordered between now and midnight on Sunday. Postage and packing charges at cost.
Depending on take-up of this offer and when the books are ordered we expect to have all books posted within 10 days or ordering at the latest.