Both amount to the same number of LED lamps (40)
One row of 4 x 1000Nd should do the job and the hanging rail will be cheaper (as you will only need one) i would reccomend getting the multicontrol 8 if you are going with either set up as this will cut down on the number of plugs you will need to run it (from 4 with no controller to only one with the controller).
reefstore.co.uk is the cheapest i have found with super fast delivery.
Hope that helps
Also if you contact TMC they are also most helpfull they answered a lot of my questions very quickly.
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