New Mac mini advice - 5400RPM or 7200RPM?

[olnacl]

This is a question I've been pondering too - whether to go with 7200 500GB or larger drive at 5400. In my case, most of my documents will be on a 1.5 TB drive in a Ministack enclosure, so the speed of the internal isn't all that important (I don't believe, anyway). I have the stock 160 internal now and speed seems fine, but since I'll be opening up the Mini to add RAM, I figure I may as well update the HDD at the same time.

Ditto Macmission's comment.