Patrick,
I would first suggest an ARC AAA to replace your PT pulsar. Believe it or not, this little light is largely what began my decent into the realm of flashaholism. However, as I have had the responsibility of changing the batteries several times, it becomes apparent that after spending $10 or so for a meager 15 minutes or so of desireable brightness, the cost begins to add up. As you probably allready know, the ARC will supply you with nearly constant brightness for 5 hours or so on inexpensive AAA batteries. I have since swapped the AAA for the pulsar on my keyring and haven't looked back since.
Secondly, I would also recomend either an opalec or inretech LED drop in for your minimag. While BadBoys and MadMaxs seem to have earned a cult following around here, I see LEDs as serving the purpose of providing long runtime, reliable illumination. This however, depends solely upon your needs. As you allready have an LS, my first choice among the two would be the Opalec. I think that you will find the long runtime and rock-solid output quite desireable.
Respectfully,
Dale