Wow, that's allot of lighting. But again, with a nice driver to control it, better have more light and dim it than not enough light.
I assume you have 5 rows of white and 1 row of blue...
Anyways, driver is one thing, but you also need a nice power supply for this. I would put three of them in series, as that would let you drive them at 12 V. Of course, you would need some resistors, too, I believe... LED's are controlled by current, not voltage, so unless the driver controls actually the current, you would need some resistors. I'm not saying it won't work without resistors, but controlling them is not so easy.
Yes, your calculations are correct. You would need a 22.8V power supply that can deliver 2.8A.
If you go with a 24V power supply, and let's say a LED opens up at 3.8V, 6 LED's per row, that means all LED will open up (start emitting) at a total of 22.8V.
24V-22.8V = 1.2V
Those 1.2V will be the voltage drop over a resistor. So you have 1.2V, over a resistor that needs to let 700mA flow. That gives us approx. 1.7 ohms resistor in series with the 6 LED's, that can withstand 1W of power at least (1.2 x .700). It's complicated... take the LED's try one row of them on a 24V supply with a controller, and see what you get. If the results are good and LED's don't burn, you're good to go, forget the resistor (even if all electronics dyi-ers would probably kill you in a medieval way for stressing the LED's with pure voltage
).
Regarding drivers, I would probably look on ebay for something, eventually with a remote - it's a nice feature. I don't know what to recommend you at this point.
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