I only have one pair of closed cans in my collection, the Beyer DT 770 Pro80Ω, but I'm listening to some Mozart with them right now and they sound real good (for a closed can that is). They are also the most comfortable headphone that I have ever worn. I have read that the 250Ω & 600Ω have less bass, so if you are going to go with the DT770, maybe look into those options.
Seeing as you are in Toronto (?), I bought mine at Long & McQuade (Bloor and Christie) for about $175 (came to just under $200 with tax).
They have a 30 day return policy, and you can try them out in the store, along with tons of other cans for comparison.