[Bremen]

mmm quad core... most of those programs (except PT) shouldn't stress the proc, you just need plenty of RAM. Although if you're likely to fireup another processor intensive task, like ripping a CD, you'd do well to get the quad core.

Also if you run a Postgre DB with PT it will use multiple cores, so you should see an improvement with the quad core system (I personally advocate using a separate computer for the DB).