1) Yeah case is good enough. Its a decent mid tower case. Just that you might face problems with front USB 3.0 of motherboard.
I would recommend getting Fractal Design Core 3000 USB 3.0 Black. Costs around $50.
2) ASRock Z87 Extreme4 Motherboard is one of the well known ones out there. Very successful, very durable, very reliable. Plenty of features to play from since it supports everything a gaming motherboard should. Buy that one. Costs around $150.
3) Get Corsair CX600W Builder PSU Bronze Certified. Costs around $80.