HP Deskjet printer buying guide

With a printer and a universal CISS system I enjoy now cheap B/W and color printing for peanuts. I attached the hose to the original cartridges. No need to change them now as they will not run out of ink. The system uses ink in bottles that is very cheap, compared to cartridges.

I want to make a small home network so that I can share files and the printer. Here’s the equipment I have:
-iMac with Mac OS X 10.4
-HP Laptop with Microsoft Windows Vista Home Premium
-HP Photosmart C5280 Printer
-Linksys (WRT54G) Wireless Router
-Tons of extra cat5 cables (Ethernet Cable)
My iMac is the desktop, primary computer that has the Printer connected directly too it. I have software on both Mac and PC systems that files can be opened on both patforms. I essentially want to be able to do file transferring between the two computers, and print from the laptop when connected to the network.
Does anyone have a really good walkthrough or know where I can get one?

my printer would print the first 1/4 of the picture the normal color, but the rest would be a shade of purple! I just changed my cartilage a few days ago so i don’t know why this is happening.

I have a HP Photosmart All in one C5180 Series printer. I have it hooked up to my wireless router via an Ethernet cable. On my Vista computer I was able to go to
Printers -> Add New -> Network Printer-> and then select it from the list that popped up.
On my XP computer, I dont know how to add that printer. I have tried putting in the Printers IP for URL and everything. I also dont know how to do it on my iMac.
Thanks

in a month