I dunno, Fury. I'm pretty damned close to maxed out as it is. I've got to go to Korriban next and I'm already level 18 or 19. Lets put it this way: if it could be fought (without getting dark side points), I fought it. if it could be hacked, I've hacked it. If it could be repaired, I repaired it. If I didn't like experience rewards for quests, I reloaded and tried again. I don't leave areas until I've opened everything and killed everything I can.
So, Malak can't really get that much tougher (Assuming enemies scale with your level). Bandon was pretty pathetic when I fought him at level 16. I'm not worried about Malak at all--especially if I get to fight him three on one next time.
Now, Yavin. I'm going to have to work some serious loot to be able to afford those. Luckily, I think I've picked up some good gear I never use (like some exosuits) because I don't use the non-jedi characters. They should sell for a good price. I've got something like 17k now, and I suppose I can go play Pazaak or race swoops (i hate these sorts of minigames.

) until I make up the difference.