That's really not enough information for a complete answer. If all you need is a pair of PC wireless cards, it may be less than $50. If you need more or other hardware it will be more expensive.
The cost associated to go wireless will depend on many factors inclduing how many computers will be on the network.
Wireless at home should only cost around $100 to setup and can connect to several computers.
Depends on how you're getting it. Cell phone data plans can be had for $20/month. EDGE/3G wireless internet for laptop computers is a little more expensive.
The cost will be about $200. The wireless router will cost around $100 and each wireless adapter will cost around $25.
About £20
They are used for computers and laptops for internet, and other things. Wireless N routers are pretty much the same thing as a regular wireless router.
it cost 250 bucks men
$250,000
How much did personal computers cost from 1900-2010?
it cost about $20-$30.
The Cost depends on your wireless phone provider as well as your plan
$139.00