Ask HN: Recommend to me a good translation service

Hi All, I'm currently wrapping up the finishing touches to a massive BugMuncher.com update. Part of that update is internationalization, so of course I need a bunch of text translated into a number of languages (initially 5 or so). I've never used any translation services before, and the HN crowd hasn't steered me wrong before, so I thought I'd call on your collective wisdom to recommend me one that won't cost the earth, but gives accurate results, in a reasonable time. Thanks in advance, Matt