So I decided building a PC is cheaper ... a question?

I've been made a quick fan of Cougar fans, fwiw. They look funny but are dead quiet and quite effective.

Those are certainly a nice design.

After doing some more looking around I decided to order the Corsair 140mm Quiet Edition fans. Amazon had then with free 3 day shipping today. I'll RMA the Silnex ones back to newegg.