Hi, a couple of days back I was asking for opinions on a good prime lens for walkabouts and candids and indoors. Today I went to the travel fair, and it seems I'm likely to go to Borobudur or Angkor Wat, which means I'll be indoors a lot, which means I'll need a good lens for low-light shooting, preferably without having to use flash. Any suggestions? My budget is tight, no more than $700. I'm getting stressed now....I leave in early May and I'm racking my brains on what lens to get. I currently have the Canon kit lens 18-55 and 70-300 f4-5.6, which are useless in low light. Opinions??