Telus is not CDMA, its GSM. I use the Telus Milestone here in the states on ATT, which is a GSM network.
I realize the milestone is quadband and with work with TMO as well.. but no the X will not work on Telus, because it is GSM, and those require a sim-card as the other does not.
But yeah you could use it on bell. Just order it directly from the manufactrer, or strike a deal with someone on here like i did, then get on ebay & get the unlock code, then go activate the phone with your carrier.
-If you decide to do it, PM me. The place i used to unlock my phone was only 6-USD and took about 20 minutes for the code to be sent.