This is a trip I've already completed. It wore me out! But it was the best mileage run ever!!!

USAirways Express 2710 YYC PHX
USAirways 414 PHX LAS (stoodby on earlier flight, but ended up confirmed on F, and got the miles for MP too!)
USAirways 888 LAS FLL (the worst leg ever! so cramped on the 757 on the late night flight). I got this one way for $87 plus tax ($156 all-in)
Continental 484 (EUA) - Upgraded on this portion from FLL CLE
Continental Express - CLE YYZ
So Calgary to Toronto took me about 32 hours including connections, but it was one heck of a great MR as mentioned, and cheap too!.

FLL to YYZ one way was $160 all in.