You could try encrypting your torrent traffic, but if their traffic shaping is any good it will be running at quite a deep inspection level.
Short of moving to an ISP that does not shape traffic there isn't a lot you can do.
Be* are pretty good (if you can get it), but if you play games they are having latency issues at the moment so maybe something like an Enta reseller or if you're not bothered by cost then Zen are pretty much as good as you will get.