Remote desktop?!?

I have two machines that I use the most; one has SuSE 9.3, the other has WinXP. These 2 machines are located in different areas of the house. I am thinking of adding SuSE to the Win XP machine as a dual boot, but I want to be able to use it as if I were on the other machine. Can I use a remote desktop, or a remote login on the linux SuSE side of the dual boot? How? How much of SuSE do I need to install if I will be using the other machine through it? I have a wireless NIC on both machines, each pointed to my router for internet access. Maybe this is a question for another thread, but... can I route the dual boot through the SuSE machine to the internet? How? Bernd