Hello IG,
Last night during the shopping spree that I did for the Coalition For Progress (what we bought do be kinda secret tho, shh), @Aphrodite came across the website "HoloNet News" which had a bunch of interesting links on it, particularly the "NavComputer" link that allows for people to choose one sector/planet and then another sector/planet, after doing so it will calculate the time needed to go from one place to another in the Galaxy, its real neat and even shows you the calculations behind it all.
http://d6holocron.com/astrogation/index.php - Here's the link.
Enjoy homie