Setup:
I am using a cable internet modem and a internet router. My PC laptop
is connected through a wireless card.

Problem:
I have several printers connected to a G5 Macintosh in the office and
I want the ability to print to any of these printers from my wireless
laptop, even if I am in another room of the house. How do I go about
setting my network up to achieve this?

I will leave a tip for a more detailed explanation and step by step instructions.

Hello jtdiddy-ga,

First things first, you have to get the printer shared out to your network. 
1.	First check that your printer functions correctly on the Mac

2.	Click the Apple Menu in the left corner

3.	Choose ?System Preferences?

4.	Click on ?Sharing? ? Make sure printer sharing has a checkmark next to 
it

5.	Write down the IP address of the Mac (You can find this in System
Preferences -> Network)

6.	Note down the Queue Name of the Printer, in Print Centre or Printer
Setup Utility

Now, with your Windows Machine?
1.	Go to Start (Bottom Left) and click ?Printers and Faxes?)

2.	Click ?Add A Printer? (The Wizard will pop up)

3.	Click ?Next?

4.	Select A network printer or a printer attached to another computer 

5.	Click ?Next? 

6.	Check the third option ?Connect to a printer on the Internet or on
a home or office network?

7.	You must enter the following URL, you must use the Queue Name you
noted down earlier
http://<IP address of Mac>:631/printers/Queue Name 
Therefore if your IP address is 10.0.1.5 and the queue name is HP_LaserJet_2500
http://10.0.1.5 :631/printers/HP_LaserJet_2500 

8.	Click ?Next?

9.	Choose the relevant Printer Driver (or click Have Disk and put in
the relevant drivers disk). Note that you should only use the Windows
driver if you have a Postscript printer. If you have problems with
printing using the Windows driver or if you have a non-postscript
printer then you need to use an Apple Windows printer driver. If the
printer attached to the Mac is a black and white printer you need to
use the Apple Laserwriter driver regardless of which printer you
actually have.

10.	Click ?OK?

11.	Decide if you want to use this as a the default printer for the
Windows machine and click ?Next?

12.	Click ?Finish?

You can read a step by step tutorial here:
http://www.ifelix.co.uk/tech/3000.html ( The Mac is running 10.3.x in
this example) I found this link here:
http://www.winguides.com/forums/showflat.php?Cat=&Board=genhardware&Number=129869&page=0&view=collapsed&sb=5&part=
With this Google Search:
://www.google.com/search?hl=en&ie=UTF-8&oe=UTF-8&q=share%20out%20a%20printer%20on%20a%20mac&btnG=Google+Search

If this answer requires further explanation, please request
clarification before rating it, and I'll be happy to look into this
further.

Nenna-GA
Google Answers Researcher

Dont know how to leave an aswer, so I'll just put it here:

 IF YOU ARE USING 10.0 OR HIGHER:
First click on the apple menu in the upper left corner, and select
system preferences.  Then click on the "Sharing" button.  Under the
"services" tab, make sure that the last checkbox (Printer Sharing) Is
Checked.  This allows other computers to Print to printers directly
connected to your computer.  Now click on the cheakbox marked "windows
Sharing".  This allows PC's to access the printers.  That is all you
have to do on the G5.  Depending on what OS you are running on the
windows changes the prossess there.  Please Leave a comment back on
what OS you are running on your PC, and I will tell you what to do on
it.

IF YOU ARE USING OS 9 PLEASE LEAVE A COMMENT AND I WILL LEAVE INSTRUCTIONS FOR OS 9.

I am running windows xp on my PC laptop.