[mike31154]

Perhaps the DIY route is not the best option if you're having that much difficulty getting a handle on designing a circuit that will work for your application. If you have some or all of the parts already, it would be a shame if you cooked a bunch of LEDs hooking things up incorrectly. Get someone who has experience to help you out in person. Without more info on the exact specs of the LEDs/drivers you intend to use, it's near impossible to provide useful advice on how you need to proceed.

LED lighting is complex. Different colour LEDs require different Vf (forward voltage) as well as varying maximum current based on their power rating in watts. For example, the typical Vf for a 10 watt multi chip red LED is 6 volts, whereas a blue 10 watt multi chip needs 9 volts & a white 10 volts. Each of these 10 watt LEDs are designed to run at a maximum current of approximately 1,000 mA or 1 amp, but the Vf for each is different. Using a single constant current driver & attempting to run different colour LEDs can lead to disaster. Typically each colour requires it's own constant current driver. One can get around that hurdle by under driving the colours that require more current in order not to burn out the ones requiring less current. The relationship between voltage & current with regards to an LED is not linear, a small rise in voltage, less than 0.5 of a volt above the LED's maximum Vf will cause a sharp rise in current. The LED will burn brightly for a few seconds, then smoke! Throw in the added complexity of hooking them up in series, parallel or a combination thereof & things get even more funky. Of course the constant current driver will attempt to keep current constant, but mixing colours on the same driver is not generally a good idea due to the varied Vf.

There are plenty of off the shelf options out there these days for most applications that won't break the bank. Might be worthwhile having a look around.