I want to connect to my mac remotely from my Windows PC. What good products are there available that you recommend checking out?
Recent versions of Mac OS X include a VNC server built-in, analogous to Microsoft's Remote Desktop Server (included in Windows). This can be accessed via the System Preferences > Sharing > Apple Remote Desktop option.
There are various free VNC clients available for Windows, most notably RealVNC.
While there are other options, VNC benefits from being a very mature graphical remote-access protocol with official support from Apple and good-quality client programs.
This is a full list I found on Wikipedia comparing remote desktop software.
I highly recommend LogMeIn. It is the fastest remote access program to Mac I've tested.