I tend to use the Condado hire business:
http://www.condadogolfclubhire.eu/
Last time I hired they had a half decent set of forged MD Golf irons with Driver, 3W, Hybrid which did me fine. From memory they have base range and a premium range for hire. Good prices.
Other option is Clubstohire.com, which I think is something to do with Paul McGinley. Not used this company yet, but will try in the future.
http://clubstohire.com/
Hope this helps.