Dear allI am confused where to buy 3G USB Modem for my Window7 64 bit OS (Dell Laptop), I heard that some usb modem does not work fine in 64 bit. My budget is 1400-1800/-. Is ebay.in products original? I find E173 and E1752C huwei usb modem good , but please tell me these modems are good in 64 bit or not. other than ebay any other best price online shop?Thanks in advanceSumer