Wireless network equipment

I have a cybercafe. but i would like to take the service to home users through wireless networks. Am confused dont know the right equipment to use.

Well, each computer that needs to connect to the network wirelessly will need a wireless network card - you could get a PCI one or a USB one, or, if the computers are laptops, you could use PCMCIA cards.

Then, since I presume you've already got a wired network in place, you would need to buy a wireless access point. This would connect by wires into the hub/switch you already have, and then allow wireless computers to access the network too.

edwin thank you very much although am not too sure this answers my question. I guess maybe am not asking it the right way.

Do you want to ask it in a different way, or just leave it at that?

alright let me ask adifferent way. The little issue is that, i want to get an external antenna most likely a DLINK for my DLINK pci wireless lan card. They use the same IEEE law. I want to know if it would work.

Originally, the AP was designed with a small antenna of outdoor range of about 400m. but the desination is about 650m am also alittle bit particular about using a PCI card and not another AP.

I'm not sure I understand. You want to buy a new antenna for your PCI card and use it in place of your access point?

Edwin, sorry to have confused u.
I want to get a new antenna(outdorr) for my AP(it uses a amall one). so that my pc about 500m away can log onto my network

As long as everything is compatible (ie: make sure you buy an antenna in the same make as the AP), and the AP allows you to use an external antenna, I can't see why this wouldn't work.