On those few occasions that I've been able to run a game over the past few years, I've used a version of the Savage Worlds rules system adapted to the Classic Traveller background. If you're interested, you can find my house rules for this here:

These rules include an extensive powers list intended for use as either Psionic and Weird Science abilities, but which could be used as "magic spells" with only a few tweaks, since in Savage Worlds "magic/miracles/psionics/weird science/etc" are just names. E.g. a bolt is a bolt is a bolt in terms of game mechanics, with only the descriptive effects and means of character access changing between different flavors of power.