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If $20 isn't going to break the bank, go with the 1TB.

Also, the 1TB drive is SATA 6Gbps, while the 750GB is SATA 3Gbps.
 
Okay so I got these two lines up:

http://www.newegg.com/Product/Produ...10-Index-_-InternalHardDrives-_-22136533-L02C

http://www.newegg.com/Product/Product.aspx?Item=N82E16822136283

The sale ends in a couple of hours.

The first one is 9 cents a megabyte with 64mb cache.

The second one is 8 cents a megabyte with 32mb cache.

Which one would be better for my external enclosure?!?

Do you need the extra 250GB? If so, get the 1TB - if not, save the bucks. Easy enough. :) My only problem is that in my experience, Caviar Blacks are a LOT louder than the Blues, but only marginally faster. Just my opinion, BTW, but from first-hand experience...
 
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