Following are my components at hand.
1. My super awesome desktop with the regular gigabit, on board lan card (on Win7).
2. A laptop, with wireless connectivity (again on Win7).
3. A modem, UTStarcom WA3002G4 with an internet connection from BSNL.
The modem is a wireless modem.

Now for my question.

I want to be able to connect the laptop and the desktop in a single LAN connection, so that

i)I may play NFS Most Wanted on both the laptop and desktop through the LAN play.

ii) I may share files and folders, fast and without any hassles.

*though mostly only the first

So, this being my completely descriptive question, I request help from all quarters. Any kind would be greatly, exceptionally, and exceedingly

appreciated (nothing more I can do sitting in front of a comp :P ).

Kindly request you to give detailed steps, so as to help the noobs as well.