If you read my first post, I clearly stated the 290 was a steal for that price. It is without a doubt a much better performing card. I merely said that my PERSONAL preference would be the 770, whether or not you listen to that is up to you. Although I am somewhat partial to Nvidia, I want OP to have the best performance possible. With the windforce cooler on the 290 to cool it to good temps, it will without doubt out-perform a 770. Although, both will run games in 1080p at 60 fps, the 290 would be smart to future-proof. That said, the 770 does have PhysX. You claim I recommend a 770>a 290, yet I stated the 290 will be 25% faster multiple times. I simply said that the 290 is faster, but I'd take a 770 due to my like for nvidia drivers, the g-sync monitors soon to be released, and physx. Take from it what you'd like, good luck on the decision! Both are quite good cards.
EDIT:
http://media.bestofmicro.com/2/W/421304/original/Performance.png
Percentage difference between 290's and a 770. Highest difference is 22.5% in this test, and that was a liquid cooled 290.