Other than a solid state drive, quieter CPU cooler, maybe a case fan or two and a bigger HDD (all optional) I think you've got everything. Also, if you don't want to worry at all about blocking the bay and if you want better airflow, you can use a Fractal Design R4 for $20-30 more. Looks cooler too.
PCPartPicker part list / Price breakdown by merchant
| Type | Item | Price |
|---|---|---|
| CPU | Intel Core i5-4460 3.2GHz Quad-Core Processor | $178.49 @ OutletPC |
| Motherboard | Gigabyte GA-H97M-D3H Micro ATX LGA1150 Motherboard | $84.88 @ OutletPC |
| Memory | G.Skill Ripjaws X Series 8GB (2 x 4GB) DDR3-1600 Memory | $54.99 @ Newegg |
| Video Card | HIS Radeon R9 285 2GB ICEQ X² Video Card | $191.98 @ Newegg |
| Case | Fractal Design Define R4 (Black Pearl) ATX Mid Tower Case | $79.99 @ NCIX US |
| Power Supply | EVGA SuperNOVA 650W 80+ Gold Certified Fully-Modular ATX Power Supply | - |
| Monitor | Acer H236HLbid 60Hz 23.0" Monitor | $149.99 @ Best Buy |
| Keyboard | Corsair Vengeance K70 Wired Gaming Keyboard | $124.99 @ Newegg |
| Mouse | Asus ROG Gladius Wired Optical Mouse | $78.71 @ Newegg |
| Headphones | Plantronics GameCom 780 7.1 Channel Headset | $59.99 @ Newegg |
| Other | SteelSeries QcK Gaming Mouse Pad (Black) | $13.50 |
| Other | Western Digital 500 GB 3.5-Inch 7200 RPM SATA III 16 MB Cache | Purchased For $69.99 |
| Prices include shipping, taxes, rebates, and discounts | ||
| Total | $1087.50 | |
| Generated by PCPartPicker 2015-04-05 18:05 EDT-0400 |