well to start you off here is a link for a 5 dollar wireless router with internet security software from tigerdirect
http://www.tigerdirect.com/applicati...2144%20ISS%20P
I've never honestly been a fan of wireless networks. 99.9% of their owners never set up the security properly, nor even change the default admin / password name. This is excluding the fact that they are just inherently slower. If all you are doing is downloading info over the web, you wont see this issue as much as if you were xfering files in between computers. People don't realize that if you do not add an encyption, the information is litterally sent plain text over the air waves. Any free scanner such as ethereal can display it. If you buy that router, and set up a WPA-2 128 bit encryption key properly, as well as having no to little need to transfer large files from computer to computer, that sounds good to me

Just whatever you do stay away from WEP encryption. Amatuers can crack it in litterally minutes. If you have any further questions feel free to ask here or PM.
(btw I would recommend buying that router, it's an amazing router for the money)