What would you do for lighting? 150w? 250w? LED?

[Milad]

So my lights are up for renewal. I have a 180g 72x24x24

currently I have 150w fixture
I can replace the bulbs and spend around $500

or I mod the fixture to 250w with nice ballast (galaxy) for about 900

or I can build a DIY LED (which i might have fun doing) for about 1100 and then sell the 150w fixture..

someone give me some FEEDBACK! ahhhh my brain is going nuts.