I have an H/K 430 (firmware upgraded) and the Athena point 5's in a 15' wide by 25' deep great room. I also have a HSU STF-2 Sub. I got everything in late summer 2004 at exceptional prices except the HSU - paid the Comp USA full retail. I am very pleased with the setup, but wonder if a stronger pair of mains (AS-F1s?) and moving two of the point 5's to a 7.1 setup wouldn't beef up the sound more. Not that I'm displeased, still tweaking the system. Can't crank it too often, the baby gets scared and Mama gets cross 
They setup sounds great to my ears! and the few times I did crank it up - Master and Commander never sounded so good on my previous system.
They setup sounds great to my ears! and the few times I did crank it up - Master and Commander never sounded so good on my previous system.