Tire recommendations for 2004 Boxster S

[Topless]

Here is a good comparison test of the various tires mentioned:
Tire Test: Nine Affordable Summer Tires Take On the Michelin PS2 - Comparison Tests

[onefastman]

For your use I would say:

Value for a performance oriented daily driver: Hancook V12's, cheap, middle rating for performance.

star specs, rs-3s, or the like wear quickly, are loud, bad in weather relative to the v12's and terrible at lower temps. They are good tires but more than you need.