Hey, man.
I've got the exact Ascend set-up you're looking at, and I think they're the deal. The Sierras mentioned are (from what everyone says) a step up, but I can tell you the only thing I DON'T like about my Ascends is that they are brutally unforgiving of poor recording.
I don't do a WHOLE lot of "critical music listening" with my gear, but they - in my limited experience - sound at least as good as anything I've heard elsewhere on music. Granted, with my budget I haven't tortured myself with going to the few high-end audio shops in St. Louis and hearing the very best of what's offered (for exponentially more money), but the other setups I've heard in other homes, electronics retailers, and home theater retailers certainly never led me to consider selling my CMT-340SEs.
For the money, I'm not convinced you can do much (if any) better. ... especially for movies (or, in my case, games).
They catch some crap for being "ugly" too, but I don't mind how they look. Take a peek, if you like:
http://forums.audioholics.com/forums/showthread.php?t=71835.
Can't speak for the Swans, but I couldn't find a negative review online regarding the Ascends when I was looking a few years ago. That's what sold me.
Good luck!