MHO I would go straight for MH
lights.. The ones at Home Depot are not going to work as they are a different color temp I believe 5500k and you want 10k bulbs.. Some use 20k bulbs which are a more blue color.. MH
kits are on ebay for around 300.00 for a dual 250 watt minus the bulbs which should be plenty for your tank.. Bulbs for MH
lights usually run for $50.00-100.00ea PC
lights will work however you will find alot of corals demand MH
to really thrive and live comfortable as with clams.. Here is a good Retro kit that should suffice for your tank as well as most corals low light excluded..
I have not purchased from them but It is the kit I have been debating for quite some time.. All that would be needed then is the MH
bulbs as the VHOs are included and fitting the kit into a hood.. I currently have 330 watt PCs on my 55gal which are nice but I hate finding a coral or... and finding out that it does best under MH
lighting and fairs at best under all other lighting.. I wish I would have just went and got straight MH
bulbs but I wanted to save the Hundred or so Dollars on the PCs..