I would go for the a4k more easy to get a stable system that way i have done to many soldering fixes on 1200 mobos for it to be stable simply not the easyest part also psu problems compared to the a4k.. And when you buy a a4k you all ready have good room for hds no need to buy nev tower at first. As i have noticed with the 1200 the more hardware hacks you install the harder it is to get the system stable..
While towerising, you'll need a keyboard adaptor, and none of them are actually any good
The lyra is exelent due to my opinion ony adapter worth mentioning everything else is garbage yes and i have had near them all..
