I second the recipe off the philly cheese box - if you leave out the lemon juice you can use it as a base cheesecake recipe and add all kinds of tasty stuff. I've done coffee, mango, berry with a choc biscuit base, kahluah, baileys, choc-hazelnut with frangelico....works a treat pretty well every time too.

Mmmmmm, cheesecake......
mmmm, Baileys......