That looks exactly like the unit that I bought Neil, although the price on the site you linked to looks like better value than what I paid (I can't remember off-hand, but I think that my unit was about 54euro excluding the bulbs).
About the only issue that I exepct to have with it is that the unit is designed for the wiring to enter at one end - my existing wiring comes out in the centre of the ceiling, which is where the centre of the light fitting will be located. So, if I want to avoid boring a hole in the centre top of the unit (and therefore sacrifice it's ability to keep out dust), I'll need to extend the existing wiring to the end of the unit and feed it in the suggested way. Not really a problem, but something that didn't occur to me to factor in when I was buying the unit. My plan is to run the extended wiring between the top of the unit and the ceiling, as a quick and easy fix (I don't want to have to go chasing plasterboard or lifting floorboards to drop the wires down elswhere in the ceiling), but I am not sure that this method would conform to wiring regulations. Although, now that I thinkg about it, I guess that drilling a hole in the top of the light fitting and sealing around the wires would actually work too.
Out of interest, did you feed your wiring in from the ends of the light fittings, or did you drill out an entry hole elsewhere in each unit? Also, did you run wiring from one unit to the next, in daisy-chain fashion, or feed wires to each unit directly? If the former, did you encase the wiring in ducting between the fittings? Thanks.