With Asus, any fan connectors prefixed by 'CHA' are chassis fans. I imagine they're identical and are.. (if Asus have been sensible) situated at opposite sides of the mobo to make cable management a little easier.
I just put together my first build ever. Hadnt touched a component in my life before. I got the MSI K8n Neo4 and put it together like it was a freakin lego set. Easiest thing... ever. Has posted some good reviews. I find all of my reviews on newegg.com and just search the product and viola! Non biased reviews. If it sucks they're first in line to tell you why.
