Theres a debate about whether warm LEDs are good enough but I'm assuming they will be. However, I want to choose which voltage will be better. I want them dimmable, I want them track mounted, I want 5 lights per track. Also, as they may not be good enough to replace Halogen just yet, would it be too much to ask if cheap Halogen lamps could be used in anything suggested untill the LED quality and price improve?