I use an SSD for the OS in my Mac Mini and a 500GB for the big data (ie virtual machines and downloads).

Once the 500GB SSDs drop some more, I'll swap out for an SSD for that drive too.

Speed is addictive.

Surround Music Fan/Computer Geek/Curmudgeon in training.
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861v4, HD621, Panasonic BD-P55K, Toshiba HD-A35, Oppo HD990, Dish Network 622, Pioneer DV-668AV-S w/ DVD Upgrades mod, EW Fontaine II (x5), Velodyne DD-15 (x2), Seymour AV Ice blocks (x7)