Here's an Acer: $679
http://www.newegg.com/Product/Product.aspx?Item=N82E16834215122
Here's a really nice one (and I like Asus) : $749
http://www.newegg.com/Product/Product.aspx?Item=N82E16834230089
Those aren't bad choices. Here's one that's even better overall:
http://www.newegg.com/Product/Product.aspx?Item=N82E16834215106
The Asus does have the better HDD, but that is the cheaper and more feasible component to replace compared to the CPU.