yeh the 520hx is a modular psu and i love mine. and also are you sure about an all acrylic case? i really debated getting one and decided against it only because i had too much stuff and couldn't do a good job on the wire management. but if you can do a good job with wire managemnt then by all means go for the case, i would hesitate to recommend it though. also you could go for a q6700, granted its twice as much as the q6600 but its got the 10x multiplier i believe so its a solid choice.