Here are some ideas. The only two US brokers that offer options trading (plus fancy trading platforms and low commissions) that have the official Canadian office are:
Interactive Brokers Canada
OptionsXpress Canada
IB commissions are as follows:
US options $0.70 per contract, Cdn options $1.50 per contract
http://www.interactivebrokers.com/en/p.php?f=commission
IB has a complicated desktop trading platform (TWS), but also has web browser platform, much more user friendly for older generation. If you courier the paperwork and wire the funds, the account will be opened and ready for trading the next day, assuming you just fund it with cash, transferring securities is a recipe for problems with any broker.
The problem with both IB and OX is that they both apply Pattern Daytrader Rule to Canadian residents. If you have less than U$25,000 than you can only make three trades per week in the same option strike (the same for stocks; fortunately futures are excluded from this foolishness).
I'm not aware of any Canadian broker applying PDT.
The next broker to look at should probably be Jitney Trade. Unlike all the rest, it's not run by banking executives, but by option traders kicked out from Montreal Exchange after their trading floor was closed. Their website is often not up-to-date so it might be better to send them email with your questions.
The other broker to look at would be Virtual Brokers. They are in the retail game for just over a year and still trying to built the customer base. Minimum to open an account used to be C$25,000.
As far as Think or Swim is concerned, TD Waterhouse is planning to roll it out in Canada sometime next year, they have been working for a while on getting access to Canadian exchanges with TOS, originally it only covered US markets.
Scotia iTrade, on the other hand, is developing in-house their own trading platform from scratch. It's said to have more features for option trading then AxisPro, currently offered as a premium platform.
Both TDW and Scotia have lower commission structure for accounts C$50,000 and up.
TradeFreedom is history, it is being merged with Scotia iTrade (or has already been merged).
Questrade? The number of horror stories on the web forums about them far outnumbers complaints about any other Canadian broker.