I am so tempted to get the ATI sunpower but I see an upgrade within the next year and I want to have the option of adding 8 bulbs to satisfy my appetite .
The sunpower only makes 6 bulb configurations.
So, I was just going to do a DIY light fixure from aluminum. I have a workhorse ballast currently powering 2XT5 right now and have an extra workhorse 7 ballast that is capable of power 4XT5's. My tank is 18 tall so I don't feel I need to overdrive them.