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will any sata hard drive work?

Yes. Any SATA drive will work. Be that a 1.5TB drive, a 10,000rpm drive, a 5400rpm notebook 2.5" drive with a 3.5" drive bay adapter, a 4200rpm 1.8" mini drive with a suitable adapter or any SATA SSD drives.

If you were planning on spending $600 on two 1TB drives from Apple then just go ahead and buy either two 2TB drives for $500 a pair or four 1.5TB drives for $520.

Or of course, for the best combo of speed and storage, you could get an Intel X25-M 80GB SSD drive for $315 (basically the fastest drive 'reasonable' money can buy) as a boot drive and have money left over for two 1TB drives listed above for $260 leaving $25 to buy a 2.5" to 3.5" converter for the SSD.
 
Yes. Any SATA drive will work. Be that a 1.5TB drive, a 10,000rpm drive, a 5400rpm notebook 2.5" drive with a 3.5" drive bay adapter, a 4200rpm 1.8" mini drive with a suitable adapter or any SATA SSD drives.

If you were planning on spending $600 on two 1TB drives from Apple then just go ahead and buy either two 2TB drives for $500 a pair or four 1.5TB drives for $520.

Or of course, for the best combo of speed and storage, you could get an Intel X25-M 80GB SSD drive for $315 (basically the fastest drive 'reasonable' money can buy) as a boot drive and have money left over for two 1TB drives listed above for $260 leaving $25 to buy a 2.5" to 3.5" converter for the SSD.

I need 1tb, i want to use one as a scratch disk and one for imovie, because for some reason imovie crashes when I have any of my external HD's plugged in. Go figure.
 
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