hey man get this
TP-Link TL-WR1043ND
At first I had a Belkin wireless G router, the area that needed to be covered was 4000-4500 sqft, the belkin did good on the ground floor but in a room on the second floor (my room) the signal quality goes down drastically, the connection gets dropped often and I have to angle my laptop in certain directions to reconnect.
So, I search online for a new wireless router and I bought the D-link 2750 U, which I thought would be sufficient, but I was wrong, it gave me the same signal quality, if not worse, in the second floor like the belkin.
and I'm not sure if you can use the D-link 2750u to stream media via usb, then I got the TL-WR1043ND and its great, detachable antennas, good range, no connection drops like the D-link 2750u , usb streaming (works like a charm). I got it from ebay from this seller for Rs 3660