I'd strongly recommend the RTM and it is cheaper then full abstinance. If there's ANY WAY you can do it, please do so. Most people who fall off plan & put weight back on haven't followed RTM so Please Please Please do everything you can to stay with it for as long as possible.
I've posted food options on the RTM board (see link above) which you can download and print.
May also be worth looking at RTM blogs for more help.
Good luck, whatever you decide!