Hunting for a office (ok, a desk) in Central London

I’m hunting for an office in Central London. Do you have any suggestions for where I should look?

I’m back in the UK for a little while and I need somewhere to place my 2x 28.5″ monitors and my ridiculously oversized luminous-blue-glowing Dell XPS computer.

My requirements are thus:

– (Exceedingly) Fast internet connection
– One desk (big enough to take 2 monitors)
– 24 hour access; I do work crazy hours
– A degree of security for the equipment
– Location: This is critical — anywhere in and around Oxford Street/Soho.

Got cash, will pay. What d’ya reckon? Any suggestions?

I’ve been looking at the eOffice in London.