Ok, that link you just sent. Input V and output V look good, but it only provides 900ma. So I'm assuming they wouldn't power The 9-11V 1000ma LEDs I was looking at. Right?
If it would, I'm assuming I would need 1 driver per 10w led?? If my single, one side "light" has (5) 10W LEDs, each light would need 5 drivers?
900mA to 1000mA is not a huge difference. The driver I linked is for a Cree 10W LED.
You are right in your assumption of needing 5 drivers for 5 LEDs.
The only way around that is to get creative...
A boost converter will bump the voltage from 12V to say... 60
From there, you would need a 'constant current' regulator. (Buck, or linear type)
You will need to manually set it to 900-1000mA, but you can then use that to run 5 of those LEDs in series.
The other alternative is to get lucky and find a constant current boost converter that you can manually adjust for 900-1000mA. This can be purchased or built.
The other keywords here for you to search is 'constant current', 'boost converter', 'adjustable'.
I don't have an example product unfortunately for you. I have been lazily looking for one myself that can run 80 - 100W of LEDs. . . I may end up just trying to build one myself