Basinhall Street, EC2 is in theMoorgate/London Wall/Cityarea with Liverpool Street just round the corner.
As for the area / hotels etc try looking at
www.thomweb.co.uk. It is a really good source for all that sort of thing.
If you want me to look you up some reasonably priced places let me know - I know lots in the area.
Hope your guy enjoys it when he/she get here!
Jess (at Blackfriars!)