I ma having a BSNL broadband connection at my home from last six months. And it is giving me better services. I have opted for the 512 kbps unlimited plan. Recently i have purchased a new Laptop which has the wifi functionality so i have decided to buy an wifi modem. i need the best modem that will suit all my requirements and also which is compatible with my system. I am using windows 7 operating system and core i5 processor. So please suggest me a finest wifi modem for the BSNL connection that i have.