I'd go with two Mars Hydro TSL-2000s if your space is 6' or less, and consider the SP-250s or one of each if you have more height. Personally, I'd go with two TSL-2000s. You could tilt the tops together a little to get more side coverage, and the larger LED circuit boards will give you a more even coverage. These are what I'm familiar with, and are performing very well for me. If you need to wait until next week, you can still get their 420Magazine discount of 3%. Talk with SmokeSara if you do.
You can also check out our other sponsor's offerings. I'm hearing good things about both Budget LED, and Next Lights.