The CA desgination has its pro's/con's. It's geared mainly to financial reporting/auditing; however, can be leveraged in to finance. I found having allowed me to at the very least get interviews for IB positions and was viewed favorably by the big canadian banks. The pro's include resume building, getting great work experience (long hours, working in teams, tight dealines, building financial acumen, etc). The only down side is you'd always be going in as an off cycle hire as banks typically prefer their new analyst/associate positions filled by recent grads. It also gives you a back up career option in the case you can't get into IB. I am speaking for my experiences only and in the Canadian market alone (CA isn't worth a damn in the US as nobody knows what the hell it is). Cheers.
Thanks for the summary. As to your last point, I've heard that the CA is becoming increasinigly respected in the US as they move towards international accounting standards. Not sure how much truth there is in that though...