Congratulations! Welcome to the club on building your first machine.
I couldn't agree more on getting a case with USB 3.0 in the front. I bought the Antec DF-85 case. No USB 3.0 connections, it has a work-around where i have to run a USB 3.0 from my front panel through my Case, out of the water-loop holes in the rear and then plug them into my I/O panel.
So take it from first hand experience, get a case that support front USB 3.0.