[BruceH]

Here's a few at different price points:

http://www.********************************************** **************/hard-top-hoist-manual-for-911-boxster-porsche-1997-2005.html

Porsche Boxter and 996 Cabriolet Hard Top Lifts Someone on RENNLIST used this one with no complaints.

Hard Top Hoist & Racks for the Porsche Boxster and Carrera

Some manual, some electric.