I am going to be moving to my grandfather's house cause he offered me a job for the summer

he has a apple airport (wireless router) connected to cable.., which I am undoubtingly going to have to exploit, but I am going to need a Wireless adpater for that.

I noticed that TRENDnet's stuff is alot cheaper then everything else, how is their quality compared to other brands like linksys?
I really don't plan on using it often, just for the summer..; so I don't want to pay too much

I want at least a connection of about 5mb at least from about 10-15m indoors..
if I get a TRENDnet card, I think I will pay the extra $6 and get 802.11g for the heck of it, but I don't think I need anything more then 802.11b..