I think you'll be well suited to get the MP10's unless you think you may want to get the MP20's and later upgrade them to MP40's. At least it would be an option.
Also keep in mind that unless I'm mistaken there has been a lot of "Attention" on how Tunze was getting their flow rates and how when a 3rd party did the real testing their #'s were significantly less than rated. I think this has been addressed and Tunze is making design changes but fact of the matter is that their posted #'s weren't realistic in our tanks.
If you want to really punch up the COOLNESS add in a GHL ProfiLux controller and really Pimp Out that cube