I'm not sure which to buy. Both seem to be very good. By the sounds of it, Sparkle is more efficient. The Enermax is modular so that will be tidier and it claims to be around 80% efficient which is still good. Also the build quality is superb. How is the sparkle's build? Unfortunately the Sparkle is out of stock. They gonna be in stock anytime soon, Gibbo? Any opinions?