How can I buy an unlocked cell phone off of ebay for my telus phone?

I have a razr V3 right now, and i really want to get a nicer phone off ebay or something to replace it.
Since Telus doens't have sim cards, can I still get a different phone?

I really want to get a sidekick.

Non TELUS / Unlocked Phones.
Do you have an unlocked digital phone that is not from TELUS Mobility? Do you want to somehow activate that phone with TELUS Mobility?

IT IS NOT POSSIBLE!

TELUS Mobility will NOT allow for the addition of any foreign (non-Telus) ESN regardless if the phone is unlocked or not! In short, you CAN NOT use non-Telus phones on TELUS Mobility's network. Please do NOT ask how it can be done because it can't.