Probably the best floorfiller in my collection would have to be the "Blockbuster Party Megamix" taken from the DMC Commercial Collection issue 191.
It's a ten minute mix feat:
Billy Ocean - When the going gets tough
Jeff Beck - Hi Ho Silver Lining
Diana Ross - Chain Reaction
James - Sit Down
Sweet - Blockbuster
Gary Glitter - Rock n Roll Part 2
Suzi Quatro - Devil Gate Drive
Suzi Quatro - Can the Can
Ami Stewart - Knock on Wood
Never fails to fill the dance floor no matter what the crowd, from 18th's to 70th birthday parties.
Also Madness Baggy Trousers or One Step Beyond