I've tried a variety of dongles over the past couple of years with varying success. Currently I'm using a Realtek USB N 150 rated dongle along with a Belkin N+ rated modem on my main laptop. I've had this set up for about 2 months and so far so good, none of the drop outs I had with previous modems and dongles have occured. I don't know how much these cost as I got them through work
Re above set up, sometimes I'm using up to 3 lap tops, 2 smart phones, a tablet and a PSP on this set up with no noticeable drop in performance. Speedtests are regularly coming in at around 16 Mbps
