Mm.. Well, there are a lot of good (and also bad) computers out there, but it's really something I suggest asking the personnel at the store you're buying your computer from. Chances are, they'll be able to direct you to the right computer.
Although, I will say that from my experience.. You don't want any Acer computer (I'm talking laptops, since that's what I have). I had one for years, and while it was perfectly functional for FH, it was difficult for me to multi-task in other windows while playing. It lagged, regardless, and so gameplay was a challenge at times. While I'm at it, I don't recommend Dell, either.
Since this summer, though, I switched to a Toshiba Satellite (the 15-inch touch-screen version), and I've been very pleased with it. It has an intel core i5 processor and 4 GB of memory (I think, it might be 6), and wasn't too terribly expensive for its longevity and performance. I've been very happy with it, and any game I play runs like a river, including FH, and even in the laggiest spot in Bonfire.
My only complaint is that it has Windows 8. Yuck. xD But, I prefer this to my old Acer.
Just ask around, and see what some others may have that might suit you. c: