which router to buy?

I am completely new to networking and i need some help.

I have a wired internet connection with a DSL modem connected to my PC.
I am going to buy a new laptop and want to be able to access the net wirelessly from anywhere in my house.
After searching the web, i have come to know that this can be achieved by using a router.
I don't know anything about how to select a router for my use.

I will be simply using the router to ba able to use wireless internet.
Please help me by detailing the specifications required for this purpose and some good options to chose from (I am very confused with b,g,n single band, dual band, 802.11 etc.).
Please help.

hello, the engenius esr9850 is a great router for the money it has gigabit ethernet ports and supports 802.11n it will work fine with your DLS connection.

more info here:

Keenan Systems Wireless Store Featuring Engenius