Seagate Momentus XT 500GB Hybrid Solid State Drive for $79.99 shipped. Here is a screenshot for your reference. It features low heat and vibration and 80% faster performance than traditional 7200-RPM drives in PCMark Vantage benchmark scores. Note that it comes in OEM packaging, which means no pretty retail box and marketing materials but is otherwise identical. Most places have it for over $99.