Nice setup - check out the new T5 MH combo lights at Sunlight Supply-
http://www.sunlightsupply.com/aquarium/news.shtml
No distributors in Canada, but you can easily get them from ReefGeek.com - I have 6xT5 in my 90, and it is BRIGHT. Mine is only 24" deep, and with your extra depth, this combo might be great.
Where did you get it built?