You Can Subscribe on Q-Tel ADSL (Barq)
for 200QR 512kbps
300QR 1mbps
400QR 2mbps
After You Got It Buy ADSL Wirless Router (D-link good in my opinion) And install it to get a Wireless connection

For More Detailed Visit :- http://www.qtel.com.qa/ProductServicesLinks.do?prodtype=1&prodId=370