First thing first, you will need a wireless router. A decent one
will usually set you back at about $130-150, unless you opt to get
a 2nd hand one.
Then you will need a wireless network card for your pc to connect
to the router in order to surf wirelessly. The card will cost about
$80 - $100.
Are you on windows XP? If you are, the wireless wizard will auto
select your wireless connection after you install the network
card.
Do remember to take the neccessary security measures. Refer to your
router Manual for more detailed info.
This is just a brief guide, any doubts, refer to manual or contact
the starhub customer care service. They'll be able to answer your
doubts. 
Hope this helped!
