There is a really fast SSD I found. The HP EX920. The 1TB version only costs $150. I bit more than the 970 EVO at 500GB, and performs about as well. Some parts, like the write speed, is a little slower, but the sustained write speed is almost double that of the 970 EVO 500GB. If that is far more space than you need, the EX920 500GB costs about $85 or so and has similar performance.