Thanks, guv (that sounds like something from a BBC show, doesn't it?) - I'll check out Aeroplan because I'd much rather dump a bunch of miles/points into one carrier. While I've done the multi-system thing in the past, I've always screwed something up and ended up either paying a penalty, losing miles, or getting slapped with a hefty fee. I'm much better at accruing miles than spending them
Thanks again!