Setting Up A Second Router As A Wireless Access Point?

I live in the UK and use Sky as my ISP.The wireless router they supply is OK as far as the internet side of things is concerned, but for a good wireless connection to my wife's laptop in the next room, it sucks.I have a spare Netgear DG834N Wireless ADSL2 modem router and was going to use this instead of my Sky router in an effort to improve the wireless range. Unfortunately, Sky's T's & C's insist that using a different router to the one they supplied could result in my internet service being withdrawn.In an effort to prevent people using a third-party router, Sky have encrypted theirs with a username and password (not the username and password used to logon for e-mail etc) that can be retrieved with a hack, but I prefer not to go down that route.What I would like to do is use the Sky router to handle the internet side of things, and then use my Netgear router as a wireless access point to give us better wireless coverage around the house.Is this possible and if so, how do I go about it?