wireless question.

I am thinking about signing on to sunrockets $9.99 mo service and would like to have it set up wirelessly like a chordless phone at home.I am not familiar with anything wireless.Here goes: What besides the wireless broadband phone do I need.(please recommend a brand if you would),and what else do I need?A router with a reciever/s????I have no Idea about this stuff.I also see some of these phones that can be used like a cell if there is a signal.(for instance while driving)And lastly,when I have the wireless setup,do I have to have the PC fired up to use the phone?I would really appreciate this.Any products you recommend would be helpful especially if they are also expandable,Like for wireless printing....Thanks People! Mark Ps,money is no object for a quality product as far as Im concerned.