Found this neat thing for calculating In-System Travel Times.
You can drill down from the whole known universe to a single system; then, you feed it a departure date, a starting location, an end location, and your acceleration, and it plots a constant acceleration trajectory to the end location, and gives you the travel time.

Select Sector: http://www.utzig.com/cgi-bin/iai/map_top.pl
Select Subsector: http://www.utzig.com/cgi-bin/iai/map_sector.pl?FSe...
Select System: http://www.utzig.com/cgi-bin/iai/map_subsector.pl?...
Select Course in Wypoc: http://www.utzig.com/cgi-bin/iai/system_detail.pl?...