I am building a new PC, and it will need to connect to the internet wirelessly. My room is one floor above the router and across the hall. My laptop (a 2006 Centrino Duo) makes the connection well enough (ususlly 1-2 bars). I'm thinking of getting a cheap Rosewill wi-fi card from newegg and using a cantenna to boost the reception. Would that work or should I shell out the cash for a fancier card? (note: I'm on a VERY tight budget)