I have just taken delivery of a pair of Bowens (http://www.bowens.co.uk/) Esprit 500DX studio lights (monoblocs) for my event photography work (http://www.event-pics.co.uk/). We have been renting 2 pairs of lights for every event, which whilst not too expensive for each event, over time the costs soon mount up as we have got busier and busier. It made much more sense for us to invest in lighting now, and we went for the Bowens without any hesitation and purchased 2 pairs.