How do I build a network with my Mac and PC and USB printer?

well, it's possible to do with cheap components but you'll need some experience.

I did before a network which included 5 PC, 2 Macs,2 printers & a DSL connection. Still wondering why you want your Mac to a wire and you PC to be wirelessly ?

Have a very deep breath & lets start :

1.Lets assume that your Cable modem is connected to a router if it's not built-in already. If not, I suggest you to buy a Linksys wireless Router 54G which has one wan port so you connect the network cable form your modem to it & 4-lan ports so we connect a network cable to the back of your MAC.

2.Your router is configured to give automatic IP addresses to the computers & so the internet works fine.

3.You have a wireless network card installed in your PC by a USB port or internally, & it connects to the router & browse the net.

4.Your printer is connected to your PC & prints. Then go to start=Printers & Faxes, you should be seeing your printer then do a right click on it and choose "Sharing". Choose "Share this printer" & then click ok.

5.Get a network cable form the router to the back of your MAC, there is hole which looks like a bigger phone –line socket, named with RJ-45. Then you go to your MAC setting, Ethernet, & choose DHCP for all (IP, DNS).

6.Now your MAC should be able to browse the net, Go to your Printer setup, Choose printer browser & you'll find the PC printer there , choose it & install it.

7.Congratulations , your network is done :D .

8.Here is a good tutorial on how connecting & using resources between Mac & PC : http://www.macdevcenter.com/pub/a/mac/2002/11/19/m...

I wish it's enough what I said , if not please feel free ot contact me thru my profile, salut :)