Ok guys, we know that the wireless connections are great....you can surf online without a cable hooked to your machine, so you can move and be wherever you want. but i also would like to know the CONS of having a wireless connection. (for example: people trying to hack your system .... etc. etc. but i really don't know 'em) can some one explain the CONS of having wireless?......and HOW can i fix a few of this CONS is there a wireless block so people won't network with my pc if we're sharing the router.......etc .etc?