theres two that i know of
davenports (charing cross undergrond, its actually in the underground)
the international magic studio (its around somewhere near oxford street do a serch on google)
Is it a serious magic seller on Hastings pier or is it a Marvins Magic type shop? I live in Eastbourne so would love to find somewhere nearer to me. I also take a trip to see Peter Nardi in Ashford