A little help on choosing between these 2 drives

[toddreg]

Originally was going with Western Digital Caviar SE16 WD6400AAKS 640GB 7200 RPM 16MB Cache SATA 3.0Gb/s Hard Drive
http://www.newegg.com/Product/Produ...k=WESTERN DIGITAL Caviar SE16 SATA WD6400AAKS

Then I ran across this one, thoughts on which is better, I can't see any difference except in the cache size - Western Digital Caviar Black D6401AALS 40GB 7200 RPM 32MB Cache SATA 3.0Gb/s Hard Drive
http://www.newegg.com/Product/Product.aspx?Item=N82E16822136319

 

[mighty442]

More cache memory is a good thing.

 

[brendano257]

More cache is "better" but offers negligible performance benefits. Choose based on the price as both are essentially identical for all intents and purposes other than bragging rights.

 

[Newf]

The AALS has two processors, twice the cache, double motor bearings and a 5 year warranty. All this for $5 more.