So you're using Rogers Extreme. I'm on Express right now and am dying with the 60 GB cap. I was planning on switching to TekSavvy but decided against it because of the slower speeds.
I heard that Teksavvy throttles when you connect to BitTorrent but unlike Rogers there is a way to block that. Well, actually, Bell considering that TekSavvy goes through Bell. Another reason I didn't go to TekSavvy is their reliance on Bell. If you have a problem with you're connection, it's likely that they won't be able to fix it considering they go through Bell. They'll probably tell you to contact Bell and Bell has horrible customer support. I used to be with them.
Personally, I wouldn't go to TekSavvy but that's my opinion. TekSavvy does have an "unlimited" service which I will admit, is awesome. Then again, the slower speeds stopped from switching.