Canadians (mostly): What do you use for stock trading?

[Martin]

I've been thinking of using my TFSA accounts to invest in stocks since its not that much money and any gains would be tax free. I'm not looking to do day trading or anything heavy, just buying/selling once every few months.

QuestTrade seems ok, but I'm not sure if its any good.

 

[Red Squirrel]

I'd be curious to know as well if there are ways to do it right online. I'd like to get into it lightly later on.