This has excellent integrated graphics for the price but a single core CPU. so if you can hack it with the single core... I mean typing up world documents doesn't need much.http://www.newegg.com/Product/Product.aspx?Item=N82E16834107043
Otherwise this computer has a T4200 dual core. It's recertified though I dunno I think that means referbished.http://www.newegg.com/Product/Product.aspx?Item=N82E16834220674
The 4500 will limit you in games. I'll use the COD series as an example:
cod2: playable for sure
cod4: maybe playable at 640x480 on minimum settings provided you can play at 30fps.
I think the ASUS is the best I can find. What games do you intend on playing?