Wednesday 12 June 2013 3.34pm
Try icanhire.com (or perhaps it's .co.uk)
They're similar to Zipcar/Zipvan and the other car clubs, but with no cars around here; only vans! You can hire them by the hour with no deposit and no exorbitant membership fee - I think it was £3 to join and that covers the cost of them conferencing calling the DVLA to check.
We got a Transit from them for £42 for the day (24 hours) and it's a self service with no deposit. That was for a weekday; I think it's more at the weekend, but not by too much.
Alternatively, try the London Transit Van Centre on the Old Kent Road
. They're very good and offer excellent customer service, but offer more traditional van hire by the day, week and weekend.