My last visit to the soon-to-close New Worlds got me:

Gaps in my library about sf:
Trillion Year Spree, by Brian Aldiss and David Wingrove
The Encyclopedia of Fantasy, edited by John Clute and John Grant
Tolkien and the Great War, by John Garth

Fiction that was on my “buy on sight in paperback list” anyway:
The Wanderer, by Fritz Leiber
The Assassin’s Edge, by Juliet E. McKenna
Emerald Magic, edited by Andrew Greeley

Reduced to £1.99 each:
Wandering Stars, edited by Jack Dann
Brian W. Aldiss, by Michael R. Collings
Aldiss Unbound, by Richard Mathews

Reduced to £1:
Red Dwarf, first series, episodes 4-6 (video)

After that, I did manage to resist the temptations of Forbidden Planet!