I recommend you not to be confused by all the jargons like "dual-band", "qaud-band"... The bottom line: GO for any unlocked GSM handset supports GSM 850 and 1900 band. Turn off 3G mode if the handset can do it, Rogers has barred MVNOs like SpeakOut Wireless to access 3G network (even though there are some exceptions here and there with the misconfigured switches).
If your wife is going to use the voicemail service, you may need to manually enter the voicemail box in the handset. Call customer service for the local voicemail centre access number and check the user manual of you handset to set it up.
HC - NO "i"
I am NOT "the" HC, we are TWO different individuals!
"If we amplify everything, we hear nothing!" - Jon Stewart, Comedian