Hi audio2004,
Both are very good monitors. Have you auditioned either of these speakers? If not, I would strongly suggest doing so. The 705's tweeter is a little brighter than that of the Monitor Golds, whereas the tweeter on these are little bit smoother IMO. Pick on your personal preference....They would even sound great for both movies and music.
Considering your price range, I would strongly suggest that you give the Energy Veritas v2.2's a try. EXCELLENT speakers!!! You will love them especially if you are using them for mostly music.
But to answer your question, if I had a choice btw the 705's and the MA Golds.....I'd go for the B&W's.