That's good, because the mods will shut you down real quick for selling services on this site.
But you didn't come across that way to me
Yes, you can save a lot of money. My most elaborate lighting setup is on my reef tank, it's (2) 175w metal halides with (2) 54w T5 Actinic 03 lamps. I built everything on it, including a custom microprocessor based controller, for about $300. $100 of that is the microprocessor board and LCD module.
We aren't allowed to link here, but I can point you in a direction... click on my username and visit my homepage. Go to the DIY section. At the top of the page there is a "DIY Suppliers" link. Also check out the Links on the left hand nav menu, and also go to the 55 reef and click on Halide Smart Canopy if you want to check out the lighting system I was talking about.