Have you ever wanted to set a price alert on all 7200RPM 1TB hard drives? Or on all Radeon HD 7970 video cards? How about any RAM modules that are DDR3-1600+, 2x4GB, and manufactured by Corsair or Kingston? Now you can with PCPartPicker parametric price alerts.
Parametric price alerts allow you to set a price alert on any part category that reflects the filter settings you want. Then if any of those items drop below your set price threshold, you'll be notified by email with a list of items that matched the criteria you configured. In the upper-right corner of every part category page is a section labelled "Parametric Price Alerts", where you can configure your alert. The alert matching criteria will match the filter settings you have for the part category list.
In addition, both normal part price alerts and parametric price alerts now take into account your preferred merchant settings, tax rates, and local-only deal availability.